2151516091412 has 6 divisors (see below), whose sum is σ = 3765153159978. Its totient is φ = 1075758045704.

The previous prime is 2151516091391. The next prime is 2151516091441. The reversal of 2151516091412 is 2141906151512.

It can be written as a sum of positive squares in only one way, i.e., 1784030376976 + 367485714436 = 1335676^2 + 606206^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268939511423 + ... + 268939511430.

It is an arithmetic number, because the mean of its divisors is an integer number (627525526663).

Almost surely, 2^{2151516091412} is an apocalyptic number.

It is an amenable number.

2151516091412 is a deficient number, since it is larger than the sum of its proper divisors (1613637068566).

2151516091412 is a wasteful number, since it uses less digits than its factorization.

2151516091412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537879022857 (or 537879022855 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 38.

The spelling of 2151516091412 in words is "two trillion, one hundred fifty-one billion, five hundred sixteen million, ninety-one thousand, four hundred twelve".