1015452220653 has 48 divisors (see below), whose sum is σ = 1623838891584. Its totient is φ = 607497304320.

The previous prime is 1015452220649. The next prime is 1015452220691. The reversal of 1015452220653 is 3560222545101.

1015452220653 is a `hidden beast` number, since 1 + 0 + 1 + 54 + 522 + 20 + 65 + 3 = 666.

It is not a de Polignac number, because 1015452220653 - 2² = 1015452220649 is a prime.

It is a super-2 number, since 2×1015452220653² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015452228653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 983550 + ... + 1731552.

It is an arithmetic number, because the mean of its divisors is an integer number (33829976908).

Almost surely, 2^{1015452220653} is an apocalyptic number.

1015452220653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1015452220653 is a deficient number, since it is larger than the sum of its proper divisors (608386670931).

1015452220653 is a wasteful number, since it uses less digits than its factorization.

1015452220653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748346 (or 748343 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 1015452220653 its reverse (3560222545101), we get a palindrome (4575674765754).

The spelling of 1015452220653 in words is "one trillion, fifteen billion, four hundred fifty-two million, two hundred twenty thousand, six hundred fifty-three".