400121164315 has 8 divisors (see below), whose sum is σ = 480551962608. Its totient is φ = 319825887840.

The previous prime is 400121164301. The next prime is 400121164321. The reversal of 400121164315 is 513461121004.

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

It is not a de Polignac number, because 400121164315 - 2⁷ = 400121164187 is a prime.

It is a super-2 number, since 2×400121164315² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33873957 + ... + 33885766.

It is an arithmetic number, because the mean of its divisors is an integer number (60068995326).

Almost surely, 2^400121164315 is an apocalyptic number.

400121164315 is a deficient number, since it is larger than the sum of its proper divisors (80430798293).

400121164315 is a wasteful number, since it uses less digits than its factorization.

400121164315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67760909.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 400121164315 its reverse (513461121004), we get a palindrome (913582285319).

It can be divided in two parts, 4001211 and 64315, that added together give a triangular number (4065526 = T₂₈₅₁).

The spelling of 400121164315 in words is "four hundred billion, one hundred twenty-one million, one hundred sixty-four thousand, three hundred fifteen".