51163341655 has 32 divisors (see below), whose sum is σ = 63012225024. Its totient is φ = 39868663296.

The previous prime is 51163341643. The next prime is 51163341667. The reversal of 51163341655 is 55614336115.

It is an interprime number because it is at equal distance from previous prime (51163341643) and next prime (51163341667).

It is a cyclic number.

It is not a de Polignac number, because 51163341655 - 2⁷ = 51163341527 is a prime.

It is a Duffinian number.

Its product of digits (162000) is a multiple of the sum of its prime divisors (3375).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19039722 + ... + 19042408.

It is an arithmetic number, because the mean of its divisors is an integer number (1969132032).

Almost surely, 2^51163341655 is an apocalyptic number.

51163341655 is a deficient number, since it is larger than the sum of its proper divisors (11848883369).

51163341655 is a wasteful number, since it uses less digits than its factorization.

51163341655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375.

The product of its digits is 162000, while the sum is 40.

The spelling of 51163341655 in words is "fifty-one billion, one hundred sixty-three million, three hundred forty-one thousand, six hundred fifty-five".