401256452420366 has 16 divisors (see below), whose sum is σ = 609387699441024. Its totient is φ = 198129214497144.

The previous prime is 401256452420347. The next prime is 401256452420389. The reversal of 401256452420366 is 663024254652104.

It is a super-2 number, since 2×401256452420366² (a number of 30 digits) contains 22 as substring.

It is a congruent 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, 498402476 + ... + 499206911.

It is an arithmetic number, because the mean of its divisors is an integer number (38086731215064).

Almost surely, 2^{401256452420366} is an apocalyptic number.

401256452420366 is a deficient number, since it is larger than the sum of its proper divisors (208131247020658).

401256452420366 is a wasteful number, since it uses less digits than its factorization.

401256452420366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997611895.

The product of its (nonzero) digits is 8294400, while the sum is 50.

The spelling of 401256452420366 in words is "four hundred one trillion, two hundred fifty-six billion, four hundred fifty-two million, four hundred twenty thousand, three hundred sixty-six".