51161066516156 has 48 divisors (see below), whose sum is σ = 92258284285440. Its totient is φ = 24816306191040.

The previous prime is 51161066516111. The next prime is 51161066516171. The reversal of 51161066516156 is 65161566016115.

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, 977426 + ... + 10162553.

It is an arithmetic number, because the mean of its divisors is an integer number (1922047589280).

Almost surely, 2^{51161066516156} is an apocalyptic number.

It is an amenable number.

51161066516156 is a deficient number, since it is larger than the sum of its proper divisors (41097217769284).

51161066516156 is a wasteful number, since it uses less digits than its factorization.

51161066516156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140314 (or 11140312 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 51161066516156 in words is "fifty-one trillion, one hundred sixty-one billion, sixty-six million, five hundred sixteen thousand, one hundred fifty-six".