20251145351541 has 8 divisors (see below), whose sum is σ = 29078567684320. Its totient is φ = 12462243293232.

The previous prime is 20251145351473. The next prime is 20251145351543. The reversal of 20251145351541 is 14515354115202.

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

It is not a de Polignac number, because 20251145351541 - 2²⁶ = 20251078242677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 519260137219 = 20251145351541 / (2 + 0 + 2 + 5 + 1 + 1 + 4 + 5 + 3 + 5 + 1 + 5 + 4 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20251145351541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20251145351543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259630068571 + ... + 259630068648.

It is an arithmetic number, because the mean of its divisors is an integer number (3634820960540).

Almost surely, 2^{20251145351541} is an apocalyptic number.

It is an amenable number.

20251145351541 is a deficient number, since it is larger than the sum of its proper divisors (8827422332779).

20251145351541 is a wasteful number, since it uses less digits than its factorization.

20251145351541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519260137235.

The product of its (nonzero) digits is 120000, while the sum is 39.

Adding to 20251145351541 its reverse (14515354115202), we get a palindrome (34766499466743).

The spelling of 20251145351541 in words is "twenty trillion, two hundred fifty-one billion, one hundred forty-five million, three hundred fifty-one thousand, five hundred forty-one".