91360144080 has 640 divisors, whose sum is σ = 331235942400. Its totient is φ = 23128934400.

The previous prime is 91360144049. The next prime is 91360144081. The reversal of 91360144080 is 8044106319.

91360144080 is a `hidden beast` number, since 9 + 1 + 3 + 601 + 4 + 40 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91360144081) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 697405615 + ... + 697405745.

It is an arithmetic number, because the mean of its divisors is an integer number (517556160).

Almost surely, 2^91360144080 is an apocalyptic number.

91360144080 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91360144080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165617971200).

91360144080 is an abundant number, since it is smaller than the sum of its proper divisors (239875798320).

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

91360144080 is a wasteful number, since it uses less digits than its factorization.

91360144080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 91360144080 in words is "ninety-one billion, three hundred sixty million, one hundred forty-four thousand, eighty".