11406440545 has 12 divisors (see below), whose sum is σ = 14143517460. Its totient is φ = 8830788960.

The previous prime is 11406440533. The next prime is 11406440561. The reversal of 11406440545 is 54504460411.

It can be written as a sum of positive squares in 2 ways, for example, as 2093611536 + 9312829009 = 45756^2 + 96503^2 .

It is not a de Polignac number, because 11406440545 - 2⁷ = 11406440417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11406440545.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1182130 + ... + 1191739.

It is an arithmetic number, because the mean of its divisors is an integer number (1178626455).

Almost surely, 2^11406440545 is an apocalyptic number.

It is an amenable number.

11406440545 is a deficient number, since it is larger than the sum of its proper divisors (2737076915).

11406440545 is an equidigital number, since it uses as much as digits as its factorization.

11406440545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373936 (or 2373905 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 11406440545 in words is "eleven billion, four hundred six million, four hundred forty thousand, five hundred forty-five".