111621345454 has 8 divisors (see below), whose sum is σ = 167452543728. Its totient is φ = 55803830880.

The previous prime is 111621345401. The next prime is 111621345457. The reversal of 111621345454 is 454543126111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111621345454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111621345457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400507 + ... + 3433174.

It is an arithmetic number, because the mean of its divisors is an integer number (20931567966).

Almost surely, 2^111621345454 is an apocalyptic number.

111621345454 is a deficient number, since it is larger than the sum of its proper divisors (55831198274).

111621345454 is an equidigital number, since it uses as much as digits as its factorization.

111621345454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6841850.

The product of its digits is 57600, while the sum is 37.

The spelling of 111621345454 in words is "one hundred eleven billion, six hundred twenty-one million, three hundred forty-five thousand, four hundred fifty-four".