126665362455 has 16 divisors (see below), whose sum is σ = 202737260544. Its totient is φ = 67530633120.

The previous prime is 126665362409. The next prime is 126665362457. The reversal of 126665362455 is 554263566621.

It is not a de Polignac number, because 126665362455 - 2⁸ = 126665362199 is a prime.

It is a super-2 number, since 2×126665362455² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126665362398 and 126665362407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126665362457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470919 + ... + 1554648.

It is an arithmetic number, because the mean of its divisors is an integer number (12671078784).

Almost surely, 2^126665362455 is an apocalyptic number.

126665362455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126665362455 is a deficient number, since it is larger than the sum of its proper divisors (76071898089).

126665362455 is a wasteful number, since it uses less digits than its factorization.

126665362455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028366.

The product of its digits is 7776000, while the sum is 51.

The spelling of 126665362455 in words is "one hundred twenty-six billion, six hundred sixty-five million, three hundred sixty-two thousand, four hundred fifty-five".