115551455453551 has 16 divisors (see below), whose sum is σ = 124531527216096. Its totient is φ = 106584474381696.

The previous prime is 115551455453527. The next prime is 115551455453563. The reversal of 115551455453551 is 155354554155511.

It is a cyclic number.

It is not a de Polignac number, because 115551455453551 - 2¹⁵ = 115551455420783 is a prime.

It is a super-2 number, since 2×115551455453551² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115551455453492 and 115551455453501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115551455453251) 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, 143174916 + ... + 143979718.

It is an arithmetic number, because the mean of its divisors is an integer number (7783220451006).

Almost surely, 2^{115551455453551} is an apocalyptic number.

115551455453551 is a deficient number, since it is larger than the sum of its proper divisors (8980071762545).

115551455453551 is a wasteful number, since it uses less digits than its factorization.

115551455453551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812922.

The product of its digits is 18750000, while the sum is 55.

The spelling of 115551455453551 in words is "one hundred fifteen trillion, five hundred fifty-one billion, four hundred fifty-five million, four hundred fifty-three thousand, five hundred fifty-one".