8257165443954 has 48 divisors (see below), whose sum is σ = 20456543328000. Its totient is φ = 2358009869760.

The previous prime is 8257165443929. The next prime is 8257165443959. The reversal of 8257165443954 is 4593445617528.

It is a happy number.

8257165443954 is a `hidden beast` number, since 8 + 2 + 5 + 7 + 1 + 6 + 544 + 39 + 54 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 8257165443891 and 8257165443900.

It is not an unprimeable number, because it can be changed into a prime (8257165443959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16139587 + ... + 16643334.

It is an arithmetic number, because the mean of its divisors is an integer number (426177986000).

Almost surely, 2^{8257165443954} is an apocalyptic number.

8257165443954 is an abundant number, since it is smaller than the sum of its proper divisors (12199377884046).

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

8257165443954 is a wasteful number, since it uses less digits than its factorization.

8257165443954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32784935 (or 32784932 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 8257165443954 in words is "eight trillion, two hundred fifty-seven billion, one hundred sixty-five million, four hundred forty-three thousand, nine hundred fifty-four".