51015155606610 has 64 divisors (see below), whose sum is σ = 132028737184512. Its totient is φ = 12540988083456.

The previous prime is 51015155606497. The next prime is 51015155606617. The reversal of 51015155606610 is 1660655151015.

It is a super-2 number, since 2×51015155606610² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51015155606617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86103774 + ... + 86694233.

It is an arithmetic number, because the mean of its divisors is an integer number (2062949018508).

Almost surely, 2^{51015155606610} is an apocalyptic number.

51015155606610 is an abundant number, since it is smaller than the sum of its proper divisors (81013581577902).

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

51015155606610 is a wasteful number, since it uses less digits than its factorization.

51015155606610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172798787.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 51015155606610 in words is "fifty-one trillion, fifteen billion, one hundred fifty-five million, six hundred six thousand, six hundred ten".