2151156454232 has 16 divisors (see below), whose sum is σ = 4034448131760. Its totient is φ = 1075303619104.

The previous prime is 2151156454177. The next prime is 2151156454331. The reversal of 2151156454232 is 2324546511512.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2151156454232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34292708 + ... + 34355379.

It is an arithmetic number, because the mean of its divisors is an integer number (252153008235).

Almost surely, 2^{2151156454232} is an apocalyptic number.

It is an amenable number.

2151156454232 is a deficient number, since it is larger than the sum of its proper divisors (1883291677528).

2151156454232 is a wasteful number, since it uses less digits than its factorization.

2151156454232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68652010 (or 68652006 counting only the distinct ones).

The product of its digits is 288000, while the sum is 41.

The spelling of 2151156454232 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-six million, four hundred fifty-four thousand, two hundred thirty-two".