11620641567 has 16 divisors (see below), whose sum is σ = 16515727200. Its totient is φ = 7242442752.

The previous prime is 11620641553. The next prime is 11620641607. The reversal of 11620641567 is 76514602611.

It is not a de Polignac number, because 11620641567 - 2⁶ = 11620641503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11620641517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757018 + ... + 772215.

It is an arithmetic number, because the mean of its divisors is an integer number (1032232950).

Almost surely, 2^11620641567 is an apocalyptic number.

11620641567 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11620641567 is a deficient number, since it is larger than the sum of its proper divisors (4895085633).

11620641567 is a wasteful number, since it uses less digits than its factorization.

11620641567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529402.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 11620641567 in words is "eleven billion, six hundred twenty million, six hundred forty-one thousand, five hundred sixty-seven".