1061451413565 has 64 divisors (see below), whose sum is σ = 1804840227072. Its totient is φ = 530849894400.

The previous prime is 1061451413551. The next prime is 1061451413593. The reversal of 1061451413565 is 5653141541601.

It is a happy number.

It is not a de Polignac number, because 1061451413565 - 2³⁷ = 924012460093 is a prime.

It is a super-2 number, since 2×1061451413565² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 88132434 + ... + 88144476.

It is an arithmetic number, because the mean of its divisors is an integer number (28200628548).

Almost surely, 2^{1061451413565} is an apocalyptic number.

1061451413565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061451413565 is a deficient number, since it is larger than the sum of its proper divisors (743388813507).

1061451413565 is a wasteful number, since it uses less digits than its factorization.

1061451413565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13310.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 1061451413565 in words is "one trillion, sixty-one billion, four hundred fifty-one million, four hundred thirteen thousand, five hundred sixty-five".