91046505600 has 384 divisors, whose sum is σ = 352810900800. Its totient is φ = 22850519040.

The previous prime is 91046505569. The next prime is 91046505607. The reversal of 91046505600 is 650564019.

91046505600 is a `hidden beast` number, since 9 + 1 + 0 + 46 + 5 + 0 + 5 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is not an unprimeable number, because it can be changed into a prime (91046505607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1437807 + ... + 1499793.

Almost surely, 2^91046505600 is an apocalyptic number.

91046505600 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 91046505600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176405450400).

91046505600 is an abundant number, since it is smaller than the sum of its proper divisors (261764395200).

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

91046505600 is a wasteful number, since it uses less digits than its factorization.

91046505600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62037 (or 62014 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 91046505600 in words is "ninety-one billion, forty-six million, five hundred five thousand, six hundred".