21264035256130 has 16 divisors (see below), whose sum is σ = 38276325336960. Its totient is φ = 8505378130032.

The previous prime is 21264035256119. The next prime is 21264035256133. The reversal of 21264035256130 is 3165253046212.

It is not an unprimeable number, because it can be changed into a prime (21264035256133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29117850 + ... + 29839189.

It is an arithmetic number, because the mean of its divisors is an integer number (2392270333560).

Almost surely, 2^{21264035256130} is an apocalyptic number.

21264035256130 is a deficient number, since it is larger than the sum of its proper divisors (17012290080830).

21264035256130 is a wasteful number, since it uses less digits than its factorization.

21264035256130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58993113.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 21264035256130 in words is "twenty-one trillion, two hundred sixty-four billion, thirty-five million, two hundred fifty-six thousand, one hundred thirty".