72005620011 has 32 divisors (see below), whose sum is σ = 103951626240. Its totient is φ = 44071979904.

The previous prime is 72005620003. The next prime is 72005620021. The reversal of 72005620011 is 11002650027.

It is not a de Polignac number, because 72005620011 - 2³ = 72005620003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72005620021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11468205 + ... + 11474481.

It is an arithmetic number, because the mean of its divisors is an integer number (3248488320).

Almost surely, 2^72005620011 is an apocalyptic number.

72005620011 is a deficient number, since it is larger than the sum of its proper divisors (31946006229).

72005620011 is a wasteful number, since it uses less digits than its factorization.

72005620011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7835.

The product of its (nonzero) digits is 840, while the sum is 24.

The spelling of 72005620011 in words is "seventy-two billion, five million, six hundred twenty thousand, eleven".