51151155015605 has 8 divisors (see below), whose sum is σ = 61385925136032. Its totient is φ = 40917897934288.

The previous prime is 51151155015601. The next prime is 51151155015629. The reversal of 51151155015605 is 50651055115115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51151155015605 - 2² = 51151155015601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51151155015601) 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, 378185399 + ... + 378320628.

It is an arithmetic number, because the mean of its divisors is an integer number (7673240642004).

Almost surely, 2^{51151155015605} is an apocalyptic number.

It is an amenable number.

51151155015605 is a deficient number, since it is larger than the sum of its proper divisors (10234770120427).

51151155015605 is a wasteful number, since it uses less digits than its factorization.

51151155015605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756519555.

The product of its (nonzero) digits is 93750, while the sum is 41.

The spelling of 51151155015605 in words is "fifty-one trillion, one hundred fifty-one billion, one hundred fifty-five million, fifteen thousand, six hundred five".