400864266066 has 16 divisors (see below), whose sum is σ = 874612944288. Its totient is φ = 121474020000.

The previous prime is 400864266043. The next prime is 400864266071. The reversal of 400864266066 is 660662468004.

It is a happy number.

It is a Curzon 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, 3036850435 + ... + 3036850566.

It is an arithmetic number, because the mean of its divisors is an integer number (54663309018).

Almost surely, 2^400864266066 is an apocalyptic number.

400864266066 is an abundant number, since it is smaller than the sum of its proper divisors (473748678222).

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

400864266066 is a wasteful number, since it uses less digits than its factorization.

400864266066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073701017.

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 400864266066 in words is "four hundred billion, eight hundred sixty-four million, two hundred sixty-six thousand, sixty-six".