111453555400 has 192 divisors, whose sum is σ = 304827364800. Its totient is φ = 37458432000.

The previous prime is 111453555397. The next prime is 111453555401. The reversal of 111453555400 is 4555354111.

It is a super-2 number, since 2×111453555400² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111453555401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1681284 + ... + 1746316.

It is an arithmetic number, because the mean of its divisors is an integer number (1587642525).

Almost surely, 2^111453555400 is an apocalyptic number.

111453555400 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 111453555400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152413682400).

111453555400 is an abundant number, since it is smaller than the sum of its proper divisors (193373809400).

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

111453555400 is a wasteful number, since it uses less digits than its factorization.

111453555400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65120 (or 65111 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 111453555400 in words is "one hundred eleven billion, four hundred fifty-three million, five hundred fifty-five thousand, four hundred".