156666545012010 has 192 divisors, whose sum is σ = 417423523547520. Its totient is φ = 37599891648000.

The previous prime is 156666545011973. The next prime is 156666545012053. The reversal of 156666545012010 is 10210545666651.

It is a super-2 number, since 2×156666545012010² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5441874696 + ... + 5441903484.

It is an arithmetic number, because the mean of its divisors is an integer number (2174080851810).

Almost surely, 2^{156666545012010} is an apocalyptic number.

156666545012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156666545012010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208711761773760).

156666545012010 is an abundant number, since it is smaller than the sum of its proper divisors (260756978535510).

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

156666545012010 is a wasteful number, since it uses less digits than its factorization.

156666545012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43765 (or 43754 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 156666545012010 in words is "one hundred fifty-six trillion, six hundred sixty-six billion, five hundred forty-five million, twelve thousand, ten".