151447552711561 has 4 divisors (see below), whose sum is σ = 151457178835012. Its totient is φ = 151437926588112.

The previous prime is 151447552711547. The next prime is 151447552711577. The reversal of 151447552711561 is 165117255744151.

151447552711561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71976033209161 + 79471519502400 = 8483869^2 + 8914680^2 .

It is a cyclic number.

It is not a de Polignac number, because 151447552711561 - 2⁵ = 151447552711529 is a prime.

It is a super-2 number, since 2×151447552711561² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151447552711261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4813038126 + ... + 4813069591.

It is an arithmetic number, because the mean of its divisors is an integer number (37864294708753).

Almost surely, 2^{151447552711561} is an apocalyptic number.

It is an amenable number.

151447552711561 is a deficient number, since it is larger than the sum of its proper divisors (9626123451).

151447552711561 is an equidigital number, since it uses as much as digits as its factorization.

151447552711561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9626123450.

The product of its digits is 5880000, while the sum is 55.

The spelling of 151447552711561 in words is "one hundred fifty-one trillion, four hundred forty-seven billion, five hundred fifty-two million, seven hundred eleven thousand, five hundred sixty-one".