155353440512 has 18 divisors (see below), whose sum is σ = 310100032158. Its totient is φ = 77676720128.

The previous prime is 155353440479. The next prime is 155353440527. The reversal of 155353440512 is 215044353551.

It can be written as a sum of positive squares in only one way, i.e., 155311657216 + 41783296 = 394096^2 + 6464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303424433 + ... + 303424944.

Almost surely, 2^155353440512 is an apocalyptic number.

It is an amenable number.

155353440512 is a deficient number, since it is larger than the sum of its proper divisors (154746591646).

155353440512 is an frugal number, since it uses more digits than its factorization.

155353440512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606849393 (or 606849379 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 155353440512 in words is "one hundred fifty-five billion, three hundred fifty-three million, four hundred forty thousand, five hundred twelve".