1154405420220 has 96 divisors (see below), whose sum is σ = 3538041675840. Its totient is φ = 279502940160.

The previous prime is 1154405420183. The next prime is 1154405420243. The reversal of 1154405420220 is 220245044511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12083625 + ... + 12178784.

It is an arithmetic number, because the mean of its divisors is an integer number (36854600790).

Almost surely, 2^{1154405420220} is an apocalyptic number.

1154405420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154405420220 is an abundant number, since it is smaller than the sum of its proper divisors (2383636255620).

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

1154405420220 is a wasteful number, since it uses less digits than its factorization.

1154405420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24262495 (or 24262493 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 1154405420220 in words is "one trillion, one hundred fifty-four billion, four hundred five million, four hundred twenty thousand, two hundred twenty".