2151235455024 has 80 divisors (see below), whose sum is σ = 5669323827552. Its totient is φ = 702665293824.

The previous prime is 2151235455001. The next prime is 2151235455079. The reversal of 2151235455024 is 4205545321512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497072 + ... + 2558064.

Almost surely, 2^{2151235455024} is an apocalyptic number.

2151235455024 is a gapful number since it is divisible by the number (24) 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 2151235455024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2834661913776).

2151235455024 is an abundant number, since it is smaller than the sum of its proper divisors (3518088372528).

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

2151235455024 is a wasteful number, since it uses less digits than its factorization.

2151235455024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061854 (or 1061848 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 2151235455024 in words is "two trillion, one hundred fifty-one billion, two hundred thirty-five million, four hundred fifty-five thousand, twenty-four".