1045654563553 has 4 divisors (see below), whose sum is σ = 1047167812528. Its totient is φ = 1044141314580.

The previous prime is 1045654563533. The next prime is 1045654563559. The reversal of 1045654563553 is 3553654565401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1045654563553 - 2⁵ = 1045654563521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045654563553.

It is not an unprimeable number, because it can be changed into a prime (1045654563559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756623451 + ... + 756624832.

It is an arithmetic number, because the mean of its divisors is an integer number (261791953132).

Almost surely, 2^{1045654563553} is an apocalyptic number.

It is an amenable number.

1045654563553 is a deficient number, since it is larger than the sum of its proper divisors (1513248975).

1045654563553 is an equidigital number, since it uses as much as digits as its factorization.

1045654563553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513248974.

The product of its (nonzero) digits is 16200000, while the sum is 52.

The spelling of 1045654563553 in words is "one trillion, forty-five billion, six hundred fifty-four million, five hundred sixty-three thousand, five hundred fifty-three".