1072665496537 has 2 divisors, whose sum is σ = 1072665496538. Its totient is φ = 1072665496536.

The previous prime is 1072665496457. The next prime is 1072665496541. The reversal of 1072665496537 is 7356945662701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 993109909401 + 79555587136 = 996549^2 + 282056^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072665496537 - 2³⁵ = 1038305758169 is a prime.

It is a super-2 number, since 2×1072665496537² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072665496547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536332748268 + 536332748269.

It is an arithmetic number, because the mean of its divisors is an integer number (536332748269).

Almost surely, 2^{1072665496537} is an apocalyptic number.

It is an amenable number.

1072665496537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072665496537 is an equidigital number, since it uses as much as digits as its factorization.

1072665496537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57153600, while the sum is 61.

The spelling of 1072665496537 in words is "one trillion, seventy-two billion, six hundred sixty-five million, four hundred ninety-six thousand, five hundred thirty-seven".