156720545546 has 16 divisors (see below), whose sum is σ = 239386492800. Its totient is φ = 76936131168.

The previous prime is 156720545491. The next prime is 156720545563. The reversal of 156720545546 is 645545027651.

It is a super-2 number, since 2×156720545546² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156720545494 and 156720545503.

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, 2742395 + ... + 2798958.

It is an arithmetic number, because the mean of its divisors is an integer number (14961655800).

Almost surely, 2^156720545546 is an apocalyptic number.

156720545546 is a deficient number, since it is larger than the sum of its proper divisors (82665947254).

156720545546 is a wasteful number, since it uses less digits than its factorization.

156720545546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541613.

The product of its (nonzero) digits is 5040000, while the sum is 50.

The spelling of 156720545546 in words is "one hundred fifty-six billion, seven hundred twenty million, five hundred forty-five thousand, five hundred forty-six".