111769077420 has 1152 divisors, whose sum is σ = 481343385600. Its totient is φ = 21163161600.

The previous prime is 111769077389. The next prime is 111769077439. The reversal of 111769077420 is 24770967111.

111769077420 is a `hidden beast` number, since 1 + 1 + 1 + 76 + 90 + 77 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 412431885 + ... + 412432155.

It is an arithmetic number, because the mean of its divisors is an integer number (417832800).

Almost surely, 2^111769077420 is an apocalyptic number.

111769077420 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 111769077420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240671692800).

111769077420 is an abundant number, since it is smaller than the sum of its proper divisors (369574308180).

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

111769077420 is a wasteful number, since it uses less digits than its factorization.

111769077420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The spelling of 111769077420 in words is "one hundred eleven billion, seven hundred sixty-nine million, seventy-seven thousand, four hundred twenty".