61656517118002 has 8 divisors (see below), whose sum is σ = 92501021043756. Its totient is φ = 30822843436752.

The previous prime is 61656517117997. The next prime is 61656517118029. The reversal of 61656517118002 is 20081171565616.

It can be written as a sum of positive squares in 2 ways, for example, as 46211294856321 + 15445222261681 = 6797889^2 + 3930041^2 .

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

It is a super-2 number, since 2×61656517118002² (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 3 ways as a sum of consecutive naturals, for example, 2707546893 + ... + 2707569664.

Almost surely, 2^{61656517118002} is an apocalyptic number.

61656517118002 is a deficient number, since it is larger than the sum of its proper divisors (30844503925754).

61656517118002 is a wasteful number, since it uses less digits than its factorization.

61656517118002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415122252.

The product of its (nonzero) digits is 604800, while the sum is 49.

The spelling of 61656517118002 in words is "sixty-one trillion, six hundred fifty-six billion, five hundred seventeen million, one hundred eighteen thousand, two".