2157346015567 has 2 divisors, whose sum is σ = 2157346015568. Its totient is φ = 2157346015566.

The previous prime is 2157346015529. The next prime is 2157346015609. The reversal of 2157346015567 is 7655106437512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2157346015567 is a prime.

It is a super-4 number, since 4×2157346015567⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2157346015267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078673007783 + 1078673007784.

It is an arithmetic number, because the mean of its divisors is an integer number (1078673007784).

Almost surely, 2^{2157346015567} is an apocalyptic number.

2157346015567 is a deficient number, since it is larger than the sum of its proper divisors (1).

2157346015567 is an equidigital number, since it uses as much as digits as its factorization.

2157346015567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 2157346015567 in words is "two trillion, one hundred fifty-seven billion, three hundred forty-six million, fifteen thousand, five hundred sixty-seven".