1055011551015 has 16 divisors (see below), whose sum is σ = 1690865070048. Its totient is φ = 561723964416.

The previous prime is 1055011551001. The next prime is 1055011551023. The reversal of 1055011551015 is 5101551105501.

It is a happy number.

It is not a de Polignac number, because 1055011551015 - 2²⁶ = 1054944442151 is a prime.

It is a super-2 number, since 2×1055011551015² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59294734 + ... + 59312523.

It is an arithmetic number, because the mean of its divisors is an integer number (105679066878).

Almost surely, 2^{1055011551015} is an apocalyptic number.

1055011551015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055011551015 is a deficient number, since it is larger than the sum of its proper divisors (635853519033).

1055011551015 is a wasteful number, since it uses less digits than its factorization.

1055011551015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118607858.

The product of its (nonzero) digits is 3125, while the sum is 30.

Adding to 1055011551015 its reverse (5101551105501), we get a palindrome (6156562656516).

The spelling of 1055011551015 in words is "one trillion, fifty-five billion, eleven million, five hundred fifty-one thousand, fifteen".