51006651015 has 16 divisors (see below), whose sum is σ = 84424802400. Its totient is φ = 26265493632.

The previous prime is 51006650993. The next prime is 51006651023. The reversal of 51006651015 is 51015660015.

It is not a de Polignac number, because 51006651015 - 2⁵ = 51006650983 is a prime.

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, 58627900 + ... + 58628769.

It is an arithmetic number, because the mean of its divisors is an integer number (5276550150).

Almost surely, 2^51006651015 is an apocalyptic number.

51006651015 is a deficient number, since it is larger than the sum of its proper divisors (33418151385).

51006651015 is a wasteful number, since it uses less digits than its factorization.

51006651015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117256706.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 51006651015 in words is "fifty-one billion, six million, six hundred fifty-one thousand, fifteen".