51106556601670 has 16 divisors (see below), whose sum is σ = 95163932982960. Its totient is φ = 19737704618464.

The previous prime is 51106556601623. The next prime is 51106556601673. The reversal of 51106556601670 is 7610665560115.

It is a super-2 number, since 2×51106556601670² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51106556601673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88114752472 + ... + 88114753051.

It is an arithmetic number, because the mean of its divisors is an integer number (5947745811435).

Almost surely, 2^{51106556601670} is an apocalyptic number.

51106556601670 is a deficient number, since it is larger than the sum of its proper divisors (44057376381290).

51106556601670 is a wasteful number, since it uses less digits than its factorization.

51106556601670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176229505559.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 51106556601670 in words is "fifty-one trillion, one hundred six billion, five hundred fifty-six million, six hundred one thousand, six hundred seventy".