51201660702 has 32 divisors (see below), whose sum is σ = 103389511680. Its totient is φ = 16903637280.

The previous prime is 51201660691. The next prime is 51201660733. The reversal of 51201660702 is 20706610215.

It is a super-2 number, since 2×51201660702² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51201660702.

It is a congruent number.

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, 164883 + ... + 359985.

It is an arithmetic number, because the mean of its divisors is an integer number (3230922240).

Almost surely, 2^51201660702 is an apocalyptic number.

51201660702 is an abundant number, since it is smaller than the sum of its proper divisors (52187850978).

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

51201660702 is a wasteful number, since it uses less digits than its factorization.

51201660702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195528.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 51201660702 in words is "fifty-one billion, two hundred one million, six hundred sixty thousand, seven hundred two".