20370138755 has 8 divisors (see below), whose sum is σ = 24491087424. Its totient is φ = 16264830400.

The previous prime is 20370138749. The next prime is 20370138827. The reversal of 20370138755 is 55783107302.

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

It is not a de Polignac number, because 20370138755 - 2⁸ = 20370138499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3907211 + ... + 3912420.

It is an arithmetic number, because the mean of its divisors is an integer number (3061385928).

Almost surely, 2^20370138755 is an apocalyptic number.

20370138755 is a deficient number, since it is larger than the sum of its proper divisors (4120948669).

20370138755 is an equidigital number, since it uses as much as digits as its factorization.

20370138755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820157.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 20370138755 in words is "twenty billion, three hundred seventy million, one hundred thirty-eight thousand, seven hundred fifty-five".