640616116462 has 32 divisors (see below), whose sum is σ = 1101248628480. Its totient is φ = 273788122560.

The previous prime is 640616116409. The next prime is 640616116499. The reversal of 640616116462 is 264611616046.

It is a happy number.

640616116462 is digitally balanced in base 2, 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 15 ways as a sum of consecutive naturals, for example, 10554762 + ... + 10615282.

It is an arithmetic number, because the mean of its divisors is an integer number (34414019640).

Almost surely, 2^640616116462 is an apocalyptic number.

640616116462 is a deficient number, since it is larger than the sum of its proper divisors (460632512018).

640616116462 is a wasteful number, since it uses less digits than its factorization.

640616116462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62616.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 640616116462 in words is "six hundred forty billion, six hundred sixteen million, one hundred sixteen thousand, four hundred sixty-two".