25116156546 has 32 divisors (see below), whose sum is σ = 54102867840. Its totient is φ = 7727115264.

The previous prime is 25116156539. The next prime is 25116156587. The reversal of 25116156546 is 64565161152.

It is a junction number, because it is equal to n+sod(n) for n = 25116156498 and 25116156507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920131 + ... + 947033.

It is an arithmetic number, because the mean of its divisors is an integer number (1690714620).

Almost surely, 2^25116156546 is an apocalyptic number.

25116156546 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25116156546 is an abundant number, since it is smaller than the sum of its proper divisors (28986711294).

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

25116156546 is a wasteful number, since it uses less digits than its factorization.

25116156546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38890.

The product of its digits is 216000, while the sum is 42.

The spelling of 25116156546 in words is "twenty-five billion, one hundred sixteen million, one hundred fifty-six thousand, five hundred forty-six".