15106506156146 has 4 divisors (see below), whose sum is σ = 22659759234222. Its totient is φ = 7553253078072.

The previous prime is 15106506156113. The next prime is 15106506156191. The reversal of 15106506156146 is 64165160560151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15104796747121 + 1709409025 = 3886489^2 + 41345^2 .

It is a super-2 number, since 2×15106506156146² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15106506156146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776626539035 + ... + 3776626539038.

Almost surely, 2^{15106506156146} is an apocalyptic number.

15106506156146 is a deficient number, since it is larger than the sum of its proper divisors (7553253078076).

15106506156146 is an equidigital number, since it uses as much as digits as its factorization.

15106506156146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7553253078075.

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 15106506156146 in words is "fifteen trillion, one hundred six billion, five hundred six million, one hundred fifty-six thousand, one hundred forty-six".