206451363120 has 80 divisors (see below), whose sum is σ = 640058721120. Its totient is φ = 55048579072.

The previous prime is 206451363101. The next prime is 206451363137. The reversal of 206451363120 is 21363154602.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×206451363120² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3040582 + ... + 3107738.

It is an arithmetic number, because the mean of its divisors is an integer number (8000734014).

Almost surely, 2^206451363120 is an apocalyptic number.

206451363120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206451363120 is an abundant number, since it is smaller than the sum of its proper divisors (433607358000).

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

206451363120 is a wasteful number, since it uses less digits than its factorization.

206451363120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79982 (or 79976 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 206451363120 in words is "two hundred six billion, four hundred fifty-one million, three hundred sixty-three thousand, one hundred twenty".