691064901116 has 12 divisors (see below), whose sum is σ = 1221104971632. Its totient is φ = 342177766368.

The previous prime is 691064901101. The next prime is 691064901151. The reversal of 691064901116 is 611109460196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838670585 + ... + 838671408.

It is an arithmetic number, because the mean of its divisors is an integer number (101758747636).

Almost surely, 2^691064901116 is an apocalyptic number.

It is an amenable number.

691064901116 is a deficient number, since it is larger than the sum of its proper divisors (530040070516).

691064901116 is a wasteful number, since it uses less digits than its factorization.

691064901116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677342100 (or 1677342098 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The spelling of 691064901116 in words is "six hundred ninety-one billion, sixty-four million, nine hundred one thousand, one hundred sixteen".