2043155420451 has 48 divisors (see below), whose sum is σ = 3010897375200. Its totient is φ = 1334715480576.

The previous prime is 2043155420431. The next prime is 2043155420459. The reversal of 2043155420451 is 1540245513402.

2043155420451 is a `hidden beast` number, since 2 + 0 + 4 + 31 + 554 + 20 + 4 + 51 = 666.

It is not a de Polignac number, because 2043155420451 - 2⁵ = 2043155420419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2043155420459) 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 47 ways as a sum of consecutive naturals, for example, 556261551 + ... + 556265223.

It is an arithmetic number, because the mean of its divisors is an integer number (62727028650).

Almost surely, 2^{2043155420451} is an apocalyptic number.

2043155420451 is a deficient number, since it is larger than the sum of its proper divisors (967741954749).

2043155420451 is a wasteful number, since it uses less digits than its factorization.

2043155420451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820 (or 6817 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 2043155420451 in words is "two trillion, forty-three billion, one hundred fifty-five million, four hundred twenty thousand, four hundred fifty-one".