155499412162 has 4 divisors (see below), whose sum is σ = 233249118246. Its totient is φ = 77749706080.

The previous prime is 155499412141. The next prime is 155499412181. The reversal of 155499412162 is 261214994551.

It is a happy number.

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., 151205100201 + 4294311961 = 388851^2 + 65531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38874853039 + ... + 38874853042.

Almost surely, 2^155499412162 is an apocalyptic number.

155499412162 is a deficient number, since it is larger than the sum of its proper divisors (77749706084).

155499412162 is an equidigital number, since it uses as much as digits as its factorization.

155499412162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77749706083.

The product of its digits is 777600, while the sum is 49.

The spelling of 155499412162 in words is "one hundred fifty-five billion, four hundred ninety-nine million, four hundred twelve thousand, one hundred sixty-two".