10166611572 has 72 divisors (see below), whose sum is σ = 28568583680. Its totient is φ = 3027274560.

The previous prime is 10166611537. The next prime is 10166611579. The reversal of 10166611572 is 27511666101.

It is a happy number.

It is a super-2 number, since 2×10166611572² (a number of 21 digits) contains 22 as substring.

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 (10166611579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335872 + ... + 364887.

Almost surely, 2^10166611572 is an apocalyptic number.

10166611572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10166611572 is an abundant number, since it is smaller than the sum of its proper divisors (18401972108).

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

10166611572 is a wasteful number, since it uses less digits than its factorization.

10166611572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700813 (or 700808 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 10166611572 in words is "ten billion, one hundred sixty-six million, six hundred eleven thousand, five hundred seventy-two".