51234154331660 has 48 divisors (see below), whose sum is σ = 111063235261440. Its totient is φ = 19832431158720.

The previous prime is 51234154331639. The next prime is 51234154331681. The reversal of 51234154331660 is 6613345143215.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51234154331639) and next prime (51234154331681).

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, 130387607 + ... + 130779953.

It is an arithmetic number, because the mean of its divisors is an integer number (2313817401280).

Almost surely, 2^{51234154331660} is an apocalyptic number.

It is an amenable number.

51234154331660 is an abundant number, since it is smaller than the sum of its proper divisors (59829080929780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51234154331660 is a wasteful number, since it uses less digits than its factorization.

51234154331660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603006 (or 603004 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

Adding to 51234154331660 its reverse (6613345143215), we get a palindrome (57847499474875).

The spelling of 51234154331660 in words is "fifty-one trillion, two hundred thirty-four billion, one hundred fifty-four million, three hundred thirty-one thousand, six hundred sixty".