151656627749 has 16 divisors (see below), whose sum is σ = 169933842816. Its totient is φ = 134128612800.

The previous prime is 151656627721. The next prime is 151656627761. The reversal of 151656627749 is 947726656151.

It is a cyclic number.

It is not a de Polignac number, because 151656627749 - 2¹² = 151656623653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151656627799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5432144 + ... + 5459990.

It is an arithmetic number, because the mean of its divisors is an integer number (10620865176).

Almost surely, 2^151656627749 is an apocalyptic number.

It is an amenable number.

151656627749 is a deficient number, since it is larger than the sum of its proper divisors (18277215067).

151656627749 is a wasteful number, since it uses less digits than its factorization.

151656627749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41276.

The product of its digits is 19051200, while the sum is 59.

The spelling of 151656627749 in words is "one hundred fifty-one billion, six hundred fifty-six million, six hundred twenty-seven thousand, seven hundred forty-nine".