20545415245301 has 16 divisors (see below), whose sum is σ = 21015941313600. Its totient is φ = 20079025694208.

The previous prime is 20545415245241. The next prime is 20545415245309. The reversal of 20545415245301 is 10354251454502.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20545415245301 is a prime.

It is a super-2 number, since 2×20545415245301² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20545415245309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39843941 + ... + 40356293.

It is an arithmetic number, because the mean of its divisors is an integer number (1313496332100).

Almost surely, 2^{20545415245301} is an apocalyptic number.

It is an amenable number.

20545415245301 is a deficient number, since it is larger than the sum of its proper divisors (470526068299).

20545415245301 is a wasteful number, since it uses less digits than its factorization.

20545415245301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516388.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 20545415245301 its reverse (10354251454502), we get a palindrome (30899666699803).

The spelling of 20545415245301 in words is "twenty trillion, five hundred forty-five billion, four hundred fifteen million, two hundred forty-five thousand, three hundred one".