677554156404 has 36 divisors (see below), whose sum is σ = 1714179108096. Its totient is φ = 225657174288.

The previous prime is 677554156403. The next prime is 677554156457. The reversal of 677554156404 is 404651455776.

677554156404 is a `hidden beast` number, since 6 + 7 + 7 + 5 + 541 + 56 + 40 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×677554156404² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677554156403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8049684 + ... + 8133419.

It is an arithmetic number, because the mean of its divisors is an integer number (47616086336).

Almost surely, 2^677554156404 is an apocalyptic number.

It is an amenable number.

677554156404 is an abundant number, since it is smaller than the sum of its proper divisors (1036624951692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677554156404 is a wasteful number, since it uses less digits than its factorization.

677554156404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16184276 (or 16184271 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 54.

The spelling of 677554156404 in words is "six hundred seventy-seven billion, five hundred fifty-four million, one hundred fifty-six thousand, four hundred four".