400037547966 has 16 divisors (see below), whose sum is σ = 914371538304. Its totient is φ = 114296442264.

The previous prime is 400037547907. The next prime is 400037547979. The reversal of 400037547966 is 669745730004.

400037547966 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 4762351720 + ... + 4762351803.

It is an arithmetic number, because the mean of its divisors is an integer number (57148221144).

Almost surely, 2^400037547966 is an apocalyptic number.

400037547966 is an abundant number, since it is smaller than the sum of its proper divisors (514333990338).

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

400037547966 is a wasteful number, since it uses less digits than its factorization.

400037547966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524703535.

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 400037547966 in words is "four hundred billion, thirty-seven million, five hundred forty-seven thousand, nine hundred sixty-six".