25064166241551 has 8 divisors (see below), whose sum is σ = 33519851732224. Its totient is φ = 16658962455960.

The previous prime is 25064166241549. The next prime is 25064166241589. The reversal of 25064166241551 is 15514266146052.

It is a happy number.

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

It is not a de Polignac number, because 25064166241551 - 2¹ = 25064166241549 is a prime.

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 25064166241551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25064166241511) 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, 12620425111 + ... + 12620427096.

It is an arithmetic number, because the mean of its divisors is an integer number (4189981466528).

Almost surely, 2^{25064166241551} is an apocalyptic number.

25064166241551 is a deficient number, since it is larger than the sum of its proper divisors (8455685490673).

25064166241551 is a wasteful number, since it uses less digits than its factorization.

25064166241551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25240852541.

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 25064166241551 in words is "twenty-five trillion, sixty-four billion, one hundred sixty-six million, two hundred forty-one thousand, five hundred fifty-one".