611401360664 has 32 divisors (see below), whose sum is σ = 1153557568800. Its totient is φ = 303787011840.

The previous prime is 611401360649. The next prime is 611401360673. The reversal of 611401360664 is 466063104116.

It is a happy number.

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, 4974674 + ... + 5096094.

It is an arithmetic number, because the mean of its divisors is an integer number (36048674025).

Almost surely, 2^611401360664 is an apocalyptic number.

It is an amenable number.

611401360664 is a deficient number, since it is larger than the sum of its proper divisors (542156208136).

611401360664 is a wasteful number, since it uses less digits than its factorization.

611401360664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125363 (or 125359 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 611401360664 in words is "six hundred eleven billion, four hundred one million, three hundred sixty thousand, six hundred sixty-four".