16247777693940 has 96 divisors (see below), whose sum is σ = 54436998792960. Its totient is φ = 3999452969088.

The previous prime is 16247777693897. The next prime is 16247777693977. The reversal of 16247777693940 is 4939677774261.

16247777693940 is a `hidden beast` number, since 1 + 6 + 2 + 477 + 7 + 7 + 69 + 3 + 94 + 0 = 666.

16247777693940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1157242104 + ... + 1157256143.

It is an arithmetic number, because the mean of its divisors is an integer number (567052070760).

Almost surely, 2^{16247777693940} is an apocalyptic number.

16247777693940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16247777693940 is an abundant number, since it is smaller than the sum of its proper divisors (38189221099020).

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

16247777693940 is a wasteful number, since it uses less digits than its factorization.

16247777693940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314498278 (or 2314498270 counting only the distinct ones).

The product of its (nonzero) digits is 672126336, while the sum is 72.

The spelling of 16247777693940 in words is "sixteen trillion, two hundred forty-seven billion, seven hundred seventy-seven million, six hundred ninety-three thousand, nine hundred forty".