16400179137790 has 32 divisors (see below), whose sum is σ = 35722070864064. Its totient is φ = 5292158645760.

The previous prime is 16400179137781. The next prime is 16400179137799. The reversal of 16400179137790 is 9773197100461.

It is an interprime number because it is at equal distance from previous prime (16400179137781) and next prime (16400179137799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16400179137799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6890830381 + ... + 6890832760.

It is an arithmetic number, because the mean of its divisors is an integer number (1116314714502).

Almost surely, 2^{16400179137790} is an apocalyptic number.

16400179137790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16400179137790 is an abundant number, since it is smaller than the sum of its proper divisors (19321891726274).

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

16400179137790 is a wasteful number, since it uses less digits than its factorization.

16400179137790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13781663172.

The product of its (nonzero) digits is 2000376, while the sum is 55.

The spelling of 16400179137790 in words is "sixteen trillion, four hundred billion, one hundred seventy-nine million, one hundred thirty-seven thousand, seven hundred ninety".