1649647164852 has 36 divisors (see below), whose sum is σ = 4169981131680. Its totient is φ = 549877154832.

The previous prime is 1649647164821. The next prime is 1649647164911. The reversal of 1649647164852 is 2584617469461.

1649647164852 is a `hidden beast` number, since 1 + 6 + 496 + 4 + 7 + 1 + 64 + 85 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1649647164852.

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, 6224299 + ... + 6483917.

Almost surely, 2^{1649647164852} is an apocalyptic number.

1649647164852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1649647164852 is an abundant number, since it is smaller than the sum of its proper divisors (2520333966828).

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

1649647164852 is a wasteful number, since it uses less digits than its factorization.

1649647164852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436132 (or 436127 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 1649647164852 in words is "one trillion, six hundred forty-nine billion, six hundred forty-seven million, one hundred sixty-four thousand, eight hundred fifty-two".