4465157452661 has 4 divisors (see below), whose sum is σ = 4585837383852. Its totient is φ = 4344477521472.

The previous prime is 4465157452607. The next prime is 4465157452709. The reversal of 4465157452661 is 1662547515644.

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 1843705024561 + 2621452428100 = 1357831^2 + 1619090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4465157452661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4465157452597 and 4465157452606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4465157452361) 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, 60339965540 + ... + 60339965613.

It is an arithmetic number, because the mean of its divisors is an integer number (1146459345963).

Almost surely, 2^{4465157452661} is an apocalyptic number.

It is an amenable number.

4465157452661 is a deficient number, since it is larger than the sum of its proper divisors (120679931191).

4465157452661 is a wasteful number, since it uses less digits than its factorization.

4465157452661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120679931190.

The product of its digits is 24192000, while the sum is 56.

The spelling of 4465157452661 in words is "four trillion, four hundred sixty-five billion, one hundred fifty-seven million, four hundred fifty-two thousand, six hundred sixty-one".