20344146155260 has 24 divisors (see below), whose sum is σ = 43877374682400. Its totient is φ = 7917721746624.

The previous prime is 20344146155251. The next prime is 20344146155269. The reversal of 20344146155260 is 6255164144302.

It is an interprime number because it is at equal distance from previous prime (20344146155251) and next prime (20344146155269).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344146155269) 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, 13746043960 + ... + 13746045439.

It is an arithmetic number, because the mean of its divisors is an integer number (1828223945100).

Almost surely, 2^{20344146155260} is an apocalyptic number.

20344146155260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344146155260 is an abundant number, since it is smaller than the sum of its proper divisors (23533228527140).

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

20344146155260 is a wasteful number, since it uses less digits than its factorization.

20344146155260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27492089445 (or 27492089443 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 20344146155260 in words is "twenty trillion, three hundred forty-four billion, one hundred forty-six million, one hundred fifty-five thousand, two hundred sixty".