21062063331960 has 128 divisors (see below), whose sum is σ = 76460599710720. Its totient is φ = 4530998495232.

The previous prime is 21062063331937. The next prime is 21062063331973. The reversal of 21062063331960 is 6913336026012.

It is a happy number.

It is a super-2 number, since 2×21062063331960² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 737452924 + ... + 737481483.

It is an arithmetic number, because the mean of its divisors is an integer number (597348435240).

Almost surely, 2^{21062063331960} is an apocalyptic number.

21062063331960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21062063331960 is an abundant number, since it is smaller than the sum of its proper divisors (55398536378760).

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

21062063331960 is a wasteful number, since it uses less digits than its factorization.

21062063331960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474934445 (or 1474934441 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 42.

Adding to 21062063331960 its reverse (6913336026012), we get a palindrome (27975399357972).

The spelling of 21062063331960 in words is "twenty-one trillion, sixty-two billion, sixty-three million, three hundred thirty-one thousand, nine hundred sixty".