156655550066 has 16 divisors (see below), whose sum is σ = 236730746880. Its totient is φ = 77747097120.

The previous prime is 156655550059. The next prime is 156655550123. The reversal of 156655550066 is 660055556651.

It is a super-2 number, since 2×156655550066² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 156655549996 and 156655550023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274106 + ... + 623253.

It is an arithmetic number, because the mean of its divisors is an integer number (14795671680).

Almost surely, 2^156655550066 is an apocalyptic number.

156655550066 is a deficient number, since it is larger than the sum of its proper divisors (80075196814).

156655550066 is a wasteful number, since it uses less digits than its factorization.

156655550066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898009.

The product of its (nonzero) digits is 4050000, while the sum is 50.

The spelling of 156655550066 in words is "one hundred fifty-six billion, six hundred fifty-five million, five hundred fifty thousand, sixty-six".