91060439660 has 48 divisors (see below), whose sum is σ = 193764130560. Its totient is φ = 35944009920.

The previous prime is 91060439621. The next prime is 91060439677. The reversal of 91060439660 is 6693406019.

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, 371897 + ... + 566063.

It is an arithmetic number, because the mean of its divisors is an integer number (4036752720).

Almost surely, 2^91060439660 is an apocalyptic number.

It is an amenable number.

91060439660 is an abundant number, since it is smaller than the sum of its proper divisors (102703690900).

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

91060439660 is a wasteful number, since it uses less digits than its factorization.

91060439660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194486 (or 194484 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 91060439660 in words is "ninety-one billion, sixty million, four hundred thirty-nine thousand, six hundred sixty".