51144668005558 has 32 divisors (see below), whose sum is σ = 78905399807808. Its totient is φ = 24855148953600.

The previous prime is 51144668005553. The next prime is 51144668005579. The reversal of 51144668005558 is 85550086644115.

It is a super-3 number, since 3×51144668005558³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144668005553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3684073 + ... + 10763908.

It is an arithmetic number, because the mean of its divisors is an integer number (2465793743994).

Almost surely, 2^{51144668005558} is an apocalyptic number.

51144668005558 is a deficient number, since it is larger than the sum of its proper divisors (27760731802250).

51144668005558 is a wasteful number, since it uses less digits than its factorization.

51144668005558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14448408.

The product of its (nonzero) digits is 23040000, while the sum is 58.

The spelling of 51144668005558 in words is "fifty-one trillion, one hundred forty-four billion, six hundred sixty-eight million, five thousand, five hundred fifty-eight".