1649245696480 has 48 divisors (see below), whose sum is σ = 4022031452544. Its totient is φ = 638417687040.

The previous prime is 1649245696429. The next prime is 1649245696487. The reversal of 1649245696480 is 846965429461.

It is a super-2 number, since 2×1649245696480² (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 (1649245696487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166249647 + ... + 166259566.

It is an arithmetic number, because the mean of its divisors is an integer number (83792321928).

Almost surely, 2^{1649245696480} is an apocalyptic number.

1649245696480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1649245696480 is an abundant number, since it is smaller than the sum of its proper divisors (2372785756064).

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

1649245696480 is a wasteful number, since it uses less digits than its factorization.

1649245696480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332509259 (or 332509251 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 64.

The spelling of 1649245696480 in words is "one trillion, six hundred forty-nine billion, two hundred forty-five million, six hundred ninety-six thousand, four hundred eighty".