4021564256130 has 64 divisors (see below), whose sum is σ = 9963631411200. Its totient is φ = 1037767796160.

The previous prime is 4021564256089. The next prime is 4021564256207. The reversal of 4021564256130 is 316524651204.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19089511 + ... + 19299029.

It is an arithmetic number, because the mean of its divisors is an integer number (155681740800).

Almost surely, 2^{4021564256130} is an apocalyptic number.

4021564256130 is an abundant number, since it is smaller than the sum of its proper divisors (5942067155070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021564256130 is a wasteful number, since it uses less digits than its factorization.

4021564256130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230199.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 4021564256130 in words is "four trillion, twenty-one billion, five hundred sixty-four million, two hundred fifty-six thousand, one hundred thirty".