1373648180553 has 144 divisors (see below), whose sum is σ = 2283124596480. Its totient is φ = 819484646400.

The previous prime is 1373648180543. The next prime is 1373648180563. The reversal of 1373648180553 is 3550818463731.

1373648180553 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 6 + 4 + 8 + 1 + 80 + 553 = 666.

It is an interprime number because it is at equal distance from previous prime (1373648180543) and next prime (1373648180563).

It is not a de Polignac number, because 1373648180553 - 2¹³ = 1373648172361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1373648180553.

It is not an unprimeable number, because it can be changed into a prime (1373648180503) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1673139883 + ... + 1673140703.

It is an arithmetic number, because the mean of its divisors is an integer number (15855031920).

Almost surely, 2^{1373648180553} is an apocalyptic number.

It is an amenable number.

1373648180553 is a deficient number, since it is larger than the sum of its proper divisors (909476415927).

1373648180553 is an frugal number, since it uses more digits than its factorization.

1373648180553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 1373648180553 in words is "one trillion, three hundred seventy-three billion, six hundred forty-eight million, one hundred eighty thousand, five hundred fifty-three".