155951190655406 has 32 divisors (see below), whose sum is σ = 249186038024448. Its totient is φ = 72945717903360.

The previous prime is 155951190655387. The next prime is 155951190655453. The reversal of 155951190655406 is 604556091159551.

155951190655406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 11184095 + ... + 20904218.

It is an arithmetic number, because the mean of its divisors is an integer number (7787063688264).

Almost surely, 2^{155951190655406} is an apocalyptic number.

155951190655406 is a deficient number, since it is larger than the sum of its proper divisors (93234847369042).

155951190655406 is a wasteful number, since it uses less digits than its factorization.

155951190655406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32089196.

The product of its (nonzero) digits is 36450000, while the sum is 62.

The spelling of 155951190655406 in words is "one hundred fifty-five trillion, nine hundred fifty-one billion, one hundred ninety million, six hundred fifty-five thousand, four hundred six".