155626645234 has 4 divisors (see below), whose sum is σ = 233439967854. Its totient is φ = 77813322616.

The previous prime is 155626645133. The next prime is 155626645249. The reversal of 155626645234 is 432546626551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 155373930625 + 252714609 = 394175^2 + 15897^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38906661307 + ... + 38906661310.

Almost surely, 2^155626645234 is an apocalyptic number.

155626645234 is a deficient number, since it is larger than the sum of its proper divisors (77813322620).

155626645234 is an equidigital number, since it uses as much as digits as its factorization.

155626645234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77813322619.

The product of its digits is 5184000, while the sum is 49.

The spelling of 155626645234 in words is "one hundred fifty-five billion, six hundred twenty-six million, six hundred forty-five thousand, two hundred thirty-four".