20145355026 has 16 divisors (see below), whose sum is σ = 40800720000. Its totient is φ = 6630116688.

The previous prime is 20145355007. The next prime is 20145355031. The reversal of 20145355026 is 62055354102.

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, 21249901 + ... + 21250848.

It is an arithmetic number, because the mean of its divisors is an integer number (2550045000).

Almost surely, 2^20145355026 is an apocalyptic number.

20145355026 is an abundant number, since it is smaller than the sum of its proper divisors (20655364974).

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

20145355026 is a wasteful number, since it uses less digits than its factorization.

20145355026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42500833.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 20145355026 in words is "twenty billion, one hundred forty-five million, three hundred fifty-five thousand, twenty-six".