155256901395 has 64 divisors (see below), whose sum is σ = 265235904000. Its totient is φ = 77419431936.

The previous prime is 155256901381. The next prime is 155256901409. The reversal of 155256901395 is 593109652551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155256901381) and next prime (155256901409).

It is not a de Polignac number, because 155256901395 - 2⁵ = 155256901363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1674411 + ... + 1764699.

It is an arithmetic number, because the mean of its divisors is an integer number (4144311000).

Almost surely, 2^155256901395 is an apocalyptic number.

155256901395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155256901395 is a deficient number, since it is larger than the sum of its proper divisors (109979002605).

155256901395 is a wasteful number, since it uses less digits than its factorization.

155256901395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90452.

The product of its (nonzero) digits is 1822500, while the sum is 51.

The spelling of 155256901395 in words is "one hundred fifty-five billion, two hundred fifty-six million, nine hundred one thousand, three hundred ninety-five".