51101404160442 has 16 divisors (see below), whose sum is σ = 102357896050080. Its totient is φ = 17007953431952.

The previous prime is 51101404160441. The next prime is 51101404160479. The reversal of 51101404160442 is 24406140410115.

It is a happy number.

It is a super-2 number, since 2×51101404160442² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51101404160441) 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, 6461984433 + ... + 6461992340.

It is an arithmetic number, because the mean of its divisors is an integer number (6397368503130).

Almost surely, 2^{51101404160442} is an apocalyptic number.

51101404160442 is an abundant number, since it is smaller than the sum of its proper divisors (51256491889638).

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

51101404160442 is a wasteful number, since it uses less digits than its factorization.

51101404160442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923977437.

The product of its (nonzero) digits is 15360, while the sum is 33.

Adding to 51101404160442 its reverse (24406140410115), we get a palindrome (75507544570557).

The spelling of 51101404160442 in words is "fifty-one trillion, one hundred one billion, four hundred four million, one hundred sixty thousand, four hundred forty-two".