20165526612 has 96 divisors (see below), whose sum is σ = 65181527040. Its totient is φ = 5237796960.

The previous prime is 20165526593. The next prime is 20165526617. The reversal of 20165526612 is 21662556102.

20165526612 is a `hidden beast` number, since 2 + 0 + 16 + 5 + 5 + 26 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20165526617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1204138 + ... + 1220769.

It is an arithmetic number, because the mean of its divisors is an integer number (678974240).

Almost surely, 2^20165526612 is an apocalyptic number.

20165526612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20165526612 is an abundant number, since it is smaller than the sum of its proper divisors (45016000428).

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

20165526612 is a wasteful number, since it uses less digits than its factorization.

20165526612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424938 (or 2424930 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 20165526612 in words is "twenty billion, one hundred sixty-five million, five hundred twenty-six thousand, six hundred twelve".