2151516435103 has 4 divisors (see below), whose sum is σ = 2458875925840. Its totient is φ = 1844156944368.

The previous prime is 2151516435097. The next prime is 2151516435127. The reversal of 2151516435103 is 3015346151512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2151516435103 - 2¹⁷ = 2151516304031 is a prime.

It is a super-2 number, since 2×2151516435103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151516435203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153679745358 + ... + 153679745371.

It is an arithmetic number, because the mean of its divisors is an integer number (614718981460).

Almost surely, 2^{2151516435103} is an apocalyptic number.

2151516435103 is a deficient number, since it is larger than the sum of its proper divisors (307359490737).

2151516435103 is an equidigital number, since it uses as much as digits as its factorization.

2151516435103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307359490736.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 2151516435103 in words is "two trillion, one hundred fifty-one billion, five hundred sixteen million, four hundred thirty-five thousand, one hundred three".