16377997901189 has 4 divisors (see below), whose sum is σ = 16379780646624. Its totient is φ = 16376215155756.

The previous prime is 16377997901147. The next prime is 16377997901227. The reversal of 16377997901189 is 98110979977361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16377997901189 - 2⁸ = 16377997900933 is a prime.

It is a super-2 number, since 2×16377997901189² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16377997901789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891358937 + ... + 891377310.

It is an arithmetic number, because the mean of its divisors is an integer number (4094945161656).

Almost surely, 2^{16377997901189} is an apocalyptic number.

It is an amenable number.

16377997901189 is a deficient number, since it is larger than the sum of its proper divisors (1782745435).

16377997901189 is an equidigital number, since it uses as much as digits as its factorization.

16377997901189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782745434.

The product of its (nonzero) digits is 324060912, while the sum is 77.

The spelling of 16377997901189 in words is "sixteen trillion, three hundred seventy-seven billion, nine hundred ninety-seven million, nine hundred one thousand, one hundred eighty-nine".