1061000100555 has 16 divisors (see below), whose sum is σ = 1698805020960. Its totient is φ = 565465100288.

The previous prime is 1061000100521. The next prime is 1061000100617. The reversal of 1061000100555 is 5550010001601.

1061000100555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1061000100555 - 2²³ = 1060991711947 is a prime.

It is a super-2 number, since 2×1061000100555² (a number of 25 digits) contains 22 as substring.

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, 25079412 + ... + 25121681.

It is an arithmetic number, because the mean of its divisors is an integer number (106175313810).

Almost surely, 2^{1061000100555} is an apocalyptic number.

1061000100555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061000100555 is a deficient number, since it is larger than the sum of its proper divisors (637804920405).

1061000100555 is a wasteful number, since it uses less digits than its factorization.

1061000100555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50202510.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 1061000100555 in words is "one trillion, sixty-one billion, one hundred thousand, five hundred fifty-five".