2157466647512 has 24 divisors (see below), whose sum is σ = 4446431780700. Its totient is φ = 980666657520.

The previous prime is 2157466647499. The next prime is 2157466647533.

2157466647512 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114392962 + ... + 1114394897.

Almost surely, 2^{2157466647512} is an apocalyptic number.

2157466647512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2157466647512 is an abundant number, since it is smaller than the sum of its proper divisors (2288965133188).

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

2157466647512 is a wasteful number, since it uses less digits than its factorization.

2157466647512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228787887 (or 2228787872 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 56.

The spelling of 2157466647512 in words is "two trillion, one hundred fifty-seven billion, four hundred sixty-six million, six hundred forty-seven thousand, five hundred twelve".