20401557753306 has 8 divisors (see below), whose sum is σ = 40803115506624. Its totient is φ = 6800519251100.

The previous prime is 20401557753281. The next prime is 20401557753307. The reversal of 20401557753306 is 60335775510402.

It is a sphenic number, since it is the product of 3 distinct primes.

20401557753306 is an admirable number.

It is a super-2 number, since 2×20401557753306² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20401557753307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700129812770 + ... + 1700129812781.

It is an arithmetic number, because the mean of its divisors is an integer number (5100389438328).

Almost surely, 2^{20401557753306} is an apocalyptic number.

20401557753306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20401557753306 is a wasteful number, since it uses less digits than its factorization.

20401557753306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400259625556.

The product of its (nonzero) digits is 2646000, while the sum is 48.

The spelling of 20401557753306 in words is "twenty trillion, four hundred one billion, five hundred fifty-seven million, seven hundred fifty-three thousand, three hundred six".