2151156540325 has 36 divisors (see below), whose sum is σ = 2911149055488. Its totient is φ = 1576037736000.

The previous prime is 2151156540319. The next prime is 2151156540329. The reversal of 2151156540325 is 5230456511512.

It is not a de Polignac number, because 2151156540325 - 2²⁹ = 2150619669413 is a prime.

It is a super-2 number, since 2×2151156540325² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151156540329) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1467951 + ... + 2541100.

Almost surely, 2^{2151156540325} is an apocalyptic number.

2151156540325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2151156540325 is a deficient number, since it is larger than the sum of its proper divisors (759992515163).

2151156540325 is a wasteful number, since it uses less digits than its factorization.

2151156540325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009214 (or 4009196 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 2151156540325 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-six million, five hundred forty thousand, three hundred twenty-five".