11611415401 has 2 divisors, whose sum is σ = 11611415402. Its totient is φ = 11611415400.

The previous prime is 11611415329. The next prime is 11611415513. The reversal of 11611415401 is 10451411611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6322635225 + 5288780176 = 79515^2 + 72724^2 .

It is a cyclic number.

It is not a de Polignac number, because 11611415401 - 2⁹ = 11611414889 is a prime.

It is a super-2 number, since 2×11611415401² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11611415201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805707700 + 5805707701.

It is an arithmetic number, because the mean of its divisors is an integer number (5805707701).

Almost surely, 2^11611415401 is an apocalyptic number.

It is an amenable number.

11611415401 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611415401 is an equidigital number, since it uses as much as digits as its factorization.

11611415401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 25.

The spelling of 11611415401 in words is "eleven billion, six hundred eleven million, four hundred fifteen thousand, four hundred one".