155290437992 has 16 divisors (see below), whose sum is σ = 296663337540. Its totient is φ = 76180214656.

The previous prime is 155290437961. The next prime is 155290438027. The reversal of 155290437992 is 299734092551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 137838442756 + 17451995236 = 371266^2 + 132106^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183125093 + ... + 183125940.

Almost surely, 2^155290437992 is an apocalyptic number.

It is an amenable number.

155290437992 is a deficient number, since it is larger than the sum of its proper divisors (141372899548).

155290437992 is a wasteful number, since it uses less digits than its factorization.

155290437992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366251092 (or 366251088 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 56.

The spelling of 155290437992 in words is "one hundred fifty-five billion, two hundred ninety million, four hundred thirty-seven thousand, nine hundred ninety-two".