51140161406 has 8 divisors (see below), whose sum is σ = 79184766144. Its totient is φ = 24745239360.

The previous prime is 51140161399. The next prime is 51140161439. The reversal of 51140161406 is 60416104115.

It is a happy number.

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

It is a super-2 number, since 2×51140161406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412420595 + ... + 412420718.

It is an arithmetic number, because the mean of its divisors is an integer number (9898095768).

Almost surely, 2^51140161406 is an apocalyptic number.

51140161406 is a deficient number, since it is larger than the sum of its proper divisors (28044604738).

51140161406 is a wasteful number, since it uses less digits than its factorization.

51140161406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824841346.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 51140161406 in words is "fifty-one billion, one hundred forty million, one hundred sixty-one thousand, four hundred six".