156206645 has 16 divisors (see below), whose sum is σ = 215180928. Its totient is φ = 106635840.

The previous prime is 156206629. The next prime is 156206647. The reversal of 156206645 is 546602651.

156206645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156206645 - 2⁴ = 156206629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156206647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1886 + ... + 17775.

It is an arithmetic number, because the mean of its divisors is an integer number (13448808).

Almost surely, 2^156206645 is an apocalyptic number.

It is an amenable number.

156206645 is a deficient number, since it is larger than the sum of its proper divisors (58974283).

156206645 is a wasteful number, since it uses less digits than its factorization.

156206645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19900.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 156206645 is about 12498.2656796853. The cubic root of 156206645 is about 538.5588516245.

The spelling of 156206645 in words is "one hundred fifty-six million, two hundred six thousand, six hundred forty-five".