206040742915392 has 336 divisors, whose sum is σ = 760906513906560. Its totient is φ = 53517075701760.

The previous prime is 206040742915379. The next prime is 206040742915439. The reversal of 206040742915392 is 293519247040602.

It is a happy number.

206040742915392 is a `hidden beast` number, since 2 + 0 + 60 + 4 + 0 + 7 + 42 + 9 + 1 + 539 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-2 number, since 2×206040742915392² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68923953 + ... + 71851184.

It is an arithmetic number, because the mean of its divisors is an integer number (2264602719960).

Almost surely, 2^{206040742915392} is an apocalyptic number.

206040742915392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206040742915392 is an abundant number, since it is smaller than the sum of its proper divisors (554865770991168).

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

206040742915392 is a wasteful number, since it uses less digits than its factorization.

206040742915392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140775187 (or 140775160 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

Adding to 206040742915392 its reverse (293519247040602), we get a palindrome (499559989955994).

The spelling of 206040742915392 in words is "two hundred six trillion, forty billion, seven hundred forty-two million, nine hundred fifteen thousand, three hundred ninety-two".