1648633853550 has 24 divisors (see below), whose sum is σ = 4088611957176. Its totient is φ = 439635694240.

The previous prime is 1648633853539. The next prime is 1648633853563. The reversal of 1648633853550 is 553583368461.

It is a happy number.

It is a super-2 number, since 2×1648633853550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5495446029 + ... + 5495446328.

It is an arithmetic number, because the mean of its divisors is an integer number (170358831549).

Almost surely, 2^{1648633853550} is an apocalyptic number.

1648633853550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1648633853550 is an abundant number, since it is smaller than the sum of its proper divisors (2439978103626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1648633853550 is a wasteful number, since it uses less digits than its factorization.

1648633853550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10990892372 (or 10990892367 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 57.

The spelling of 1648633853550 in words is "one trillion, six hundred forty-eight billion, six hundred thirty-three million, eight hundred fifty-three thousand, five hundred fifty".