16387620333953 has 12 divisors (see below), whose sum is σ = 18796005790464. Its totient is φ = 14250104635800.

The previous prime is 16387620333949. The next prime is 16387620333979. The reversal of 16387620333953 is 35933302678361.

16387620333953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16387620333953 - 2² = 16387620333949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16387620333892 and 16387620333901.

It is not an unprimeable number, because it can be changed into a prime (16387620333913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2944233713 + ... + 2944239278.

It is an arithmetic number, because the mean of its divisors is an integer number (1566333815872).

Almost surely, 2^{16387620333953} is an apocalyptic number.

It is an amenable number.

16387620333953 is a deficient number, since it is larger than the sum of its proper divisors (2408385456511).

16387620333953 is a wasteful number, since it uses less digits than its factorization.

16387620333953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888473036 (or 5888473025 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 59.

The spelling of 16387620333953 in words is "sixteen trillion, three hundred eighty-seven billion, six hundred twenty million, three hundred thirty-three thousand, nine hundred fifty-three".