16774253315640 has 128 divisors (see below), whose sum is σ = 57425371848000. Its totient is φ = 4352238687744.

The previous prime is 16774253315593. The next prime is 16774253315647. The reversal of 16774253315640 is 4651335247761.

16774253315640 is a `hidden beast` number, since 1 + 6 + 7 + 7 + 42 + 5 + 3 + 31 + 564 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16774253315647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209848095 + ... + 209928014.

Almost surely, 2^{16774253315640} is an apocalyptic number.

16774253315640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16774253315640 is an abundant number, since it is smaller than the sum of its proper divisors (40651118532360).

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

16774253315640 is a wasteful number, since it uses less digits than its factorization.

16774253315640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419776166 (or 419776156 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 16774253315640 in words is "sixteen trillion, seven hundred seventy-four billion, two hundred fifty-three million, three hundred fifteen thousand, six hundred forty".