2154115620063 has 12 divisors (see below), whose sum is σ = 3394364007528. Its totient is φ = 1305524618160.

The previous prime is 2154115620037. The next prime is 2154115620089. The reversal of 2154115620063 is 3600265114512.

2154115620063 is a `hidden beast` number, since 2 + 1 + 541 + 1 + 56 + 2 + 0 + 0 + 63 = 666.

It is an interprime number because it is at equal distance from previous prime (2154115620037) and next prime (2154115620089).

It is not a de Polignac number, because 2154115620063 - 2¹³ = 2154115611871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154115625063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10879371720 + ... + 10879371917.

It is an arithmetic number, because the mean of its divisors is an integer number (282863667294).

Almost surely, 2^{2154115620063} is an apocalyptic number.

2154115620063 is a deficient number, since it is larger than the sum of its proper divisors (1240248387465).

2154115620063 is a wasteful number, since it uses less digits than its factorization.

2154115620063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21758743654 (or 21758743651 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 2154115620063 in words is "two trillion, one hundred fifty-four billion, one hundred fifteen million, six hundred twenty thousand, sixty-three".