61168364699 has 16 divisors (see below), whose sum is σ = 65996972832. Its totient is φ = 56357503488.

The previous prime is 61168364681. The next prime is 61168364729. The reversal of 61168364699 is 99646386116.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-61168364699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61168360699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27342809 + ... + 27345045.

It is an arithmetic number, because the mean of its divisors is an integer number (4124810802).

Almost surely, 2^61168364699 is an apocalyptic number.

61168364699 is a deficient number, since it is larger than the sum of its proper divisors (4828608133).

61168364699 is a wasteful number, since it uses less digits than its factorization.

61168364699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246.

The product of its digits is 10077696, while the sum is 59.

The spelling of 61168364699 in words is "sixty-one billion, one hundred sixty-eight million, three hundred sixty-four thousand, six hundred ninety-nine".