70156149146 has 4 divisors (see below), whose sum is σ = 105234223722. Its totient is φ = 35078074572.

The previous prime is 70156149139. The next prime is 70156149169. The reversal of 70156149146 is 64194165107.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64194165107 = 42767 ⋅1501021.

It can be written as a sum of positive squares in only one way, i.e., 64217134921 + 5939014225 = 253411^2 + 77065^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70156149097 and 70156149106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17539037285 + ... + 17539037288.

Almost surely, 2^70156149146 is an apocalyptic number.

70156149146 is a deficient number, since it is larger than the sum of its proper divisors (35078074576).

70156149146 is a wasteful number, since it uses less digits than its factorization.

70156149146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35078074575.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 70156149146 in words is "seventy billion, one hundred fifty-six million, one hundred forty-nine thousand, one hundred forty-six".