531564452334465 has 64 divisors (see below), whose sum is σ = 984743960739840. Its totient is φ = 241988814679040.

The previous prime is 531564452334401. The next prime is 531564452334469. The reversal of 531564452334465 is 564433254465135.

It is not a de Polignac number, because 531564452334465 - 2⁶ = 531564452334401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531564452334399 and 531564452334408.

It is not an unprimeable number, because it can be changed into a prime (531564452334469) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 224965569 + ... + 227316158.

It is an arithmetic number, because the mean of its divisors is an integer number (15386624386560).

Almost surely, 2^{531564452334465} is an apocalyptic number.

531564452334465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531564452334465 is a deficient number, since it is larger than the sum of its proper divisors (453179508405375).

531564452334465 is a wasteful number, since it uses less digits than its factorization.

531564452334465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452282182.

The product of its digits is 311040000, while the sum is 60.

The spelling of 531564452334465 in words is "five hundred thirty-one trillion, five hundred sixty-four billion, four hundred fifty-two million, three hundred thirty-four thousand, four hundred sixty-five".