91505561103401 has 8 divisors (see below), whose sum is σ = 91854945297984. Its totient is φ = 91156187926800.

The previous prime is 91505561103353. The next prime is 91505561103443. The reversal of 91505561103401 is 10430116550519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91505561103401 - 2²² = 91505556909097 is a prime.

It is a super-2 number, since 2×91505561103401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91505566103401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14083550 + ... + 19528376.

It is an arithmetic number, because the mean of its divisors is an integer number (11481868162248).

Almost surely, 2^{91505561103401} is an apocalyptic number.

It is an amenable number.

91505561103401 is a deficient number, since it is larger than the sum of its proper divisors (349384194583).

91505561103401 is a wasteful number, since it uses less digits than its factorization.

91505561103401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508991.

The product of its (nonzero) digits is 81000, while the sum is 41.

The spelling of 91505561103401 in words is "ninety-one trillion, five hundred five billion, five hundred sixty-one million, one hundred three thousand, four hundred one".