2151550374543 has 40 divisors (see below), whose sum is σ = 3392132198400. Its totient is φ = 1355288134032.

The previous prime is 2151550374499. The next prime is 2151550374587. The reversal of 2151550374543 is 3454730551512.

2151550374543 is a `hidden beast` number, since 2 + 1 + 51 + 5 + 50 + 3 + 7 + 4 + 543 = 666.

It is an interprime number because it is at equal distance from previous prime (2151550374499) and next prime (2151550374587).

It is not a de Polignac number, because 2151550374543 - 2¹³ = 2151550366351 is a prime.

It is a super-3 number, since 3×2151550374543³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151550374443) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 1261071 + ... + 2427632.

It is an arithmetic number, because the mean of its divisors is an integer number (84803304960).

Almost surely, 2^{2151550374543} is an apocalyptic number.

2151550374543 is a deficient number, since it is larger than the sum of its proper divisors (1240581823857).

2151550374543 is a wasteful number, since it uses less digits than its factorization.

2151550374543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689113 (or 3689104 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 2151550374543 in words is "two trillion, one hundred fifty-one billion, five hundred fifty million, three hundred seventy-four thousand, five hundred forty-three".