1185590387553 has 48 divisors (see below), whose sum is σ = 1931744427840. Its totient is φ = 640395974400.

The previous prime is 1185590387551. The next prime is 1185590387591. The reversal of 1185590387553 is 3557830955811.

It is not a de Polignac number, because 1185590387553 - 2¹ = 1185590387551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1185590387551) 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, 3503538 + ... + 3827003.

It is an arithmetic number, because the mean of its divisors is an integer number (40244675580).

Almost surely, 2^{1185590387553} is an apocalyptic number.

1185590387553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1185590387553 is a deficient number, since it is larger than the sum of its proper divisors (746154040287).

1185590387553 is a wasteful number, since it uses less digits than its factorization.

1185590387553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7330610 (or 7330597 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 60.

The spelling of 1185590387553 in words is "one trillion, one hundred eighty-five billion, five hundred ninety million, three hundred eighty-seven thousand, five hundred fifty-three".