11620694545 has 8 divisors (see below), whose sum is σ = 14425689960. Its totient is φ = 8975984640.

The previous prime is 11620694543. The next prime is 11620694563. The reversal of 11620694545 is 54549602611.

It can be written as a sum of positive squares in 4 ways, for example, as 1509788736 + 10110905809 = 38856^2 + 100553^2 .

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

It is not a de Polignac number, because 11620694545 - 2¹ = 11620694543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11620694543) 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, 40071216 + ... + 40071505.

It is an arithmetic number, because the mean of its divisors is an integer number (1803211245).

Almost surely, 2^11620694545 is an apocalyptic number.

It is an amenable number.

11620694545 is a deficient number, since it is larger than the sum of its proper divisors (2804995415).

11620694545 is an equidigital number, since it uses as much as digits as its factorization.

11620694545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80142755.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 11620694545 in words is "eleven billion, six hundred twenty million, six hundred ninety-four thousand, five hundred forty-five".