155794688464 has 20 divisors (see below), whose sum is σ = 303878067300. Its totient is φ = 77374542080.

The previous prime is 155794688453. The next prime is 155794688471. The reversal of 155794688464 is 464886497551.

It can be written as a sum of positive squares in 2 ways, for example, as 23292864400 + 132501824064 = 152620^2 + 364008^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155794688464.

It is a congruent number.

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, 32672677 + ... + 32677444.

It is an arithmetic number, because the mean of its divisors is an integer number (15193903365).

Almost surely, 2^155794688464 is an apocalyptic number.

It is an amenable number.

155794688464 is a deficient number, since it is larger than the sum of its proper divisors (148083378836).

155794688464 is a wasteful number, since it uses less digits than its factorization.

155794688464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65350278 (or 65350272 counting only the distinct ones).

The product of its digits is 232243200, while the sum is 67.

The spelling of 155794688464 in words is "one hundred fifty-five billion, seven hundred ninety-four million, six hundred eighty-eight thousand, four hundred sixty-four".