51065140671554 has 32 divisors (see below), whose sum is σ = 78672112871616. Its totient is φ = 24849033002560.

The previous prime is 51065140671541. The next prime is 51065140671577. The reversal of 51065140671554 is 45517604156015.

It is a super-2 number, since 2×51065140671554² (a number of 28 digits) contains 22 as substring.

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, 31949189 + ... + 33509415.

It is an arithmetic number, because the mean of its divisors is an integer number (2458503527238).

Almost surely, 2^{51065140671554} is an apocalyptic number.

51065140671554 is a deficient number, since it is larger than the sum of its proper divisors (27606972200062).

51065140671554 is a wasteful number, since it uses less digits than its factorization.

51065140671554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562770.

The product of its (nonzero) digits is 2520000, while the sum is 50.

The spelling of 51065140671554 in words is "fifty-one trillion, sixty-five billion, one hundred forty million, six hundred seventy-one thousand, five hundred fifty-four".