20514907662152 has 108 divisors (see below), whose sum is σ = 39796481859795. Its totient is φ = 9914256118368.

The previous prime is 20514907662107. The next prime is 20514907662163. The reversal of 20514907662152 is 25126670941502.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 10257453831076 + 10257453831076 = 3202726^2 + 3202726^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3202726.

It is a super-2 number, since 2×20514907662152² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20514907662152.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 91995101513 + ... + 91995101735.

Almost surely, 2^{20514907662152} is an apocalyptic number.

It is an amenable number.

20514907662152 is a deficient number, since it is larger than the sum of its proper divisors (19281574197643).

20514907662152 is an frugal number, since it uses more digits than its factorization.

20514907662152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 20514907662152 in words is "twenty trillion, five hundred fourteen billion, nine hundred seven million, six hundred sixty-two thousand, one hundred fifty-two".