16398784145937 has 8 divisors (see below), whose sum is σ = 21874581099904. Its totient is φ = 10927754977968.

The previous prime is 16398784145911. The next prime is 16398784145971. The reversal of 16398784145937 is 73954148789361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16398784145937 - 2¹⁰ = 16398784144913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16398784145537) 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, 1191938473 + ... + 1191952230.

It is an arithmetic number, because the mean of its divisors is an integer number (2734322637488).

Almost surely, 2^{16398784145937} is an apocalyptic number.

It is an amenable number.

16398784145937 is a deficient number, since it is larger than the sum of its proper divisors (5475796953967).

16398784145937 is a wasteful number, since it uses less digits than its factorization.

16398784145937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383892999.

The product of its digits is 1097349120, while the sum is 75.

The spelling of 16398784145937 in words is "sixteen trillion, three hundred ninety-eight billion, seven hundred eighty-four million, one hundred forty-five thousand, nine hundred thirty-seven".