91501410064 has 45 divisors (see below), whose sum is σ = 181248883797. Its totient is φ = 44749456512.

The previous prime is 91501410037. The next prime is 91501410089. The reversal of 91501410064 is 46001410519.

The square root of 91501410064 is 302492.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 89465595664 + 2035814400 = 299108^2 + 45120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56867692 + ... + 56869300.

Almost surely, 2^91501410064 is an apocalyptic number.

91501410064 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

91501410064 is the 302492-nd square number.

It is an amenable number.

91501410064 is a deficient number, since it is larger than the sum of its proper divisors (89747473733).

91501410064 is an frugal number, since it uses more digits than its factorization.

91501410064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 91501410064 in words is "ninety-one billion, five hundred one million, four hundred ten thousand, sixty-four".