16070571621 has 48 divisors (see below), whose sum is σ = 26335108800. Its totient is φ = 9361702656.

The previous prime is 16070571613. The next prime is 16070571623. The reversal of 16070571621 is 12617507061.

16070571621 is a `hidden beast` number, since 1 + 60 + 7 + 0 + 571 + 6 + 21 = 666.

It is not a de Polignac number, because 16070571621 - 2³ = 16070571613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16070571623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4250710 + ... + 4254488.

It is an arithmetic number, because the mean of its divisors is an integer number (548648100).

Almost surely, 2^16070571621 is an apocalyptic number.

It is an amenable number.

16070571621 is a deficient number, since it is larger than the sum of its proper divisors (10264537179).

16070571621 is a wasteful number, since it uses less digits than its factorization.

16070571621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730 (or 5727 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 16070571621 in words is "sixteen billion, seventy million, five hundred seventy-one thousand, six hundred twenty-one".