661504046 has 8 divisors (see below), whose sum is σ = 1134006960. Its totient is φ = 283501728.

The previous prime is 661504043. The next prime is 661504073. The reversal of 661504046 is 640405166.

661504046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661504043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23625131 + ... + 23625158.

It is an arithmetic number, because the mean of its divisors is an integer number (141750870).

Almost surely, 2^661504046 is an apocalyptic number.

661504046 is a deficient number, since it is larger than the sum of its proper divisors (472502914).

661504046 is a wasteful number, since it uses less digits than its factorization.

661504046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47250298.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 661504046 is about 25719.7209549404. The cubic root of 661504046 is about 871.3196364744.

The spelling of 661504046 in words is "six hundred sixty-one million, five hundred four thousand, forty-six".