2145277111515 has 16 divisors (see below), whose sum is σ = 3435845229600. Its totient is φ = 1143013842432.

The previous prime is 2145277111489. The next prime is 2145277111543. The reversal of 2145277111515 is 5151117725412.

It is not a de Polignac number, because 2145277111515 - 2⁶ = 2145277111451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70856260 + ... + 70886529.

It is an arithmetic number, because the mean of its divisors is an integer number (214740326850).

Almost surely, 2^{2145277111515} is an apocalyptic number.

2145277111515 is a deficient number, since it is larger than the sum of its proper divisors (1290568118085).

2145277111515 is a wasteful number, since it uses less digits than its factorization.

2145277111515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141743806.

The product of its digits is 98000, while the sum is 42.

The spelling of 2145277111515 in words is "two trillion, one hundred forty-five billion, two hundred seventy-seven million, one hundred eleven thousand, five hundred fifteen".