16161200777077 has 8 divisors (see below), whose sum is σ = 17290672100960. Its totient is φ = 15059617634160.

The previous prime is 16161200777047. The next prime is 16161200777083. The reversal of 16161200777077 is 77077700216161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16161200777077 is a prime.

It is a super-2 number, since 2×16161200777077² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16161200777047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6972044043 + ... + 6972046360.

It is an arithmetic number, because the mean of its divisors is an integer number (2161334012620).

Almost surely, 2^{16161200777077} is an apocalyptic number.

It is an amenable number.

16161200777077 is a deficient number, since it is larger than the sum of its proper divisors (1129471323883).

16161200777077 is a wasteful number, since it uses less digits than its factorization.

16161200777077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944090483.

The product of its (nonzero) digits is 1210104, while the sum is 52.

The spelling of 16161200777077 in words is "sixteen trillion, one hundred sixty-one billion, two hundred million, seven hundred seventy-seven thousand, seventy-seven".