11620571400 has 144 divisors (see below), whose sum is σ = 39856377600. Its totient is φ = 3032864640.

The previous prime is 11620571363. The next prime is 11620571407. The reversal of 11620571400 is 417502611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11620571407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15921 + ... + 153279.

It is an arithmetic number, because the mean of its divisors is an integer number (276780400).

Almost surely, 2^11620571400 is an apocalyptic number.

11620571400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11620571400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19928188800).

11620571400 is an abundant number, since it is smaller than the sum of its proper divisors (28235806200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11620571400 is a wasteful number, since it uses less digits than its factorization.

11620571400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137428 (or 137416 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 11620571400 in words is "eleven billion, six hundred twenty million, five hundred seventy-one thousand, four hundred".