127207016364551 has 32 divisors (see below), whose sum is σ = 141059799451008. Its totient is φ = 114100845281280.

The previous prime is 127207016364539. The next prime is 127207016364559. The reversal of 127207016364551 is 155463610702721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127207016364551 is a prime.

It is a super-2 number, since 2×127207016364551² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127207016364551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127207016364559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117000131 + ... + 118082363.

It is an arithmetic number, because the mean of its divisors is an integer number (4408118732844).

Almost surely, 2^{127207016364551} is an apocalyptic number.

127207016364551 is a deficient number, since it is larger than the sum of its proper divisors (13852783086457).

127207016364551 is a wasteful number, since it uses less digits than its factorization.

127207016364551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083371.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 127207016364551 in words is "one hundred twenty-seven trillion, two hundred seven billion, sixteen million, three hundred sixty-four thousand, five hundred fifty-one".