2021010403158 has 80 divisors (see below), whose sum is σ = 4685408038080. Its totient is φ = 650344270464.

The previous prime is 2021010403157. The next prime is 2021010403169. The reversal of 2021010403158 is 8513040101202.

2021010403158 is a `hidden beast` number, since 2 + 0 + 2 + 101 + 0 + 403 + 158 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021010403157) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36273610 + ... + 36329282.

It is an arithmetic number, because the mean of its divisors is an integer number (58567600476).

Almost surely, 2^{2021010403158} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021010403158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2342704019040).

2021010403158 is an abundant number, since it is smaller than the sum of its proper divisors (2664397634922).

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

2021010403158 is a wasteful number, since it uses less digits than its factorization.

2021010403158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63443 (or 63434 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 2021010403158 in words is "two trillion, twenty-one billion, ten million, four hundred three thousand, one hundred fifty-eight".