404156554361 has 16 divisors (see below), whose sum is σ = 478258784640. Its totient is φ = 334167630720.

The previous prime is 404156554349. The next prime is 404156554363. The reversal of 404156554361 is 163455651404.

It is not a de Polignac number, because 404156554361 - 2²² = 404152360057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404156554363) 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, 690956 + ... + 1133901.

It is an arithmetic number, because the mean of its divisors is an integer number (29891174040).

Almost surely, 2^404156554361 is an apocalyptic number.

It is an amenable number.

404156554361 is a deficient number, since it is larger than the sum of its proper divisors (74102230279).

404156554361 is a wasteful number, since it uses less digits than its factorization.

404156554361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825984.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 404156554361 in words is "four hundred four billion, one hundred fifty-six million, five hundred fifty-four thousand, three hundred sixty-one".