155196518394 has 32 divisors (see below), whose sum is σ = 317896413120. Its totient is φ = 50483768832.

The previous prime is 155196518387. The next prime is 155196518501. The reversal of 155196518394 is 493815691551.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18922 + ... + 557450.

It is an arithmetic number, because the mean of its divisors is an integer number (9934262910).

Almost surely, 2^155196518394 is an apocalyptic number.

155196518394 is an abundant number, since it is smaller than the sum of its proper divisors (162699894726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155196518394 is a wasteful number, since it uses less digits than its factorization.

155196518394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539694.

The product of its digits is 5832000, while the sum is 57.

The spelling of 155196518394 in words is "one hundred fifty-five billion, one hundred ninety-six million, five hundred eighteen thousand, three hundred ninety-four".