21053024145246 has 16 divisors (see below), whose sum is σ = 42106110715008. Its totient is φ = 7017664311000.

The previous prime is 21053024145203. The next prime is 21053024145269. The reversal of 21053024145246 is 64254142035012.

It is a super-2 number, since 2×21053024145246² (a number of 27 digits) contains 22 as substring.

It is a congruent 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, 2575911 + ... + 6981501.

It is an arithmetic number, because the mean of its divisors is an integer number (2631631919688).

Almost surely, 2^{21053024145246} is an apocalyptic number.

21053024145246 is an abundant number, since it is smaller than the sum of its proper divisors (21053086569762).

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

21053024145246 is a wasteful number, since it uses less digits than its factorization.

21053024145246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202047.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 21053024145246 in words is "twenty-one trillion, fifty-three billion, twenty-four million, one hundred forty-five thousand, two hundred forty-six".