16158626478 has 12 divisors (see below), whose sum is σ = 35010357408. Its totient is φ = 5386208820.

The previous prime is 16158626467. The next prime is 16158626567. The reversal of 16158626478 is 87462685161.

16158626478 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 8 + 626 + 4 + 7 + 8 = 666.

It is a super-2 number, since 2×16158626478² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448850718 + ... + 448850753.

It is an arithmetic number, because the mean of its divisors is an integer number (2917529784).

Almost surely, 2^16158626478 is an apocalyptic number.

16158626478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16158626478 is an abundant number, since it is smaller than the sum of its proper divisors (18851730930).

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

16158626478 is a wasteful number, since it uses less digits than its factorization.

16158626478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897701479 (or 897701476 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 16158626478 in words is "sixteen billion, one hundred fifty-eight million, six hundred twenty-six thousand, four hundred seventy-eight".