151663123947 has 18 divisors (see below), whose sum is σ = 208979880636. Its totient is φ = 97833686160.

The previous prime is 151663123921. The next prime is 151663124051. The reversal of 151663123947 is 749321366151.

It is not a de Polignac number, because 151663123947 - 2²⁸ = 151394688491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151663123896 and 151663123905.

It is not an unprimeable number, because it can be changed into a prime (151663323947) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20906773 + ... + 20914025.

Almost surely, 2^151663123947 is an apocalyptic number.

151663123947 is a deficient number, since it is larger than the sum of its proper divisors (57316756689).

151663123947 is an frugal number, since it uses more digits than its factorization.

151663123947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14571 (or 7287 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

Multiplying 151663123947 by its sum of digits (48), we get a square (7279829949456 = 2698116²).

The spelling of 151663123947 in words is "one hundred fifty-one billion, six hundred sixty-three million, one hundred twenty-three thousand, nine hundred forty-seven".