1295543664954 has 160 divisors (see below), whose sum is σ = 3625280372736. Its totient is φ = 335948510880.

The previous prime is 1295543664917. The next prime is 1295543665033. The reversal of 1295543664954 is 4594663455921.

1295543664954 is a `hidden beast` number, since 1 + 2 + 9 + 55 + 436 + 64 + 95 + 4 = 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 = 1295543664891 and 1295543664900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7486167 + ... + 7657269.

Almost surely, 2^{1295543664954} is an apocalyptic number.

1295543664954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1295543664954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812640186368).

1295543664954 is an abundant number, since it is smaller than the sum of its proper divisors (2329736707782).

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

1295543664954 is a wasteful number, since it uses less digits than its factorization.

1295543664954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171742 (or 171733 counting only the distinct ones).

The product of its digits is 139968000, while the sum is 63.

The spelling of 1295543664954 in words is "one trillion, two hundred ninety-five billion, five hundred forty-three million, six hundred sixty-four thousand, nine hundred fifty-four".