25660154312051 has 16 divisors (see below), whose sum is σ = 29349033875904. Its totient is φ = 21977063627904.

The previous prime is 25660154311973. The next prime is 25660154312081. The reversal of 25660154312051 is 15021345106652.

It is a de Polignac number, because none of the positive numbers 2^k-25660154312051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25660154312081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104974865 + ... + 105219021.

It is an arithmetic number, because the mean of its divisors is an integer number (1834314617244).

Almost surely, 2^{25660154312051} is an apocalyptic number.

25660154312051 is a deficient number, since it is larger than the sum of its proper divisors (3688879563853).

25660154312051 is a wasteful number, since it uses less digits than its factorization.

25660154312051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255950.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 25660154312051 in words is "twenty-five trillion, six hundred sixty billion, one hundred fifty-four million, three hundred twelve thousand, fifty-one".