615452666406 has 16 divisors (see below), whose sum is σ = 1230962612544. Its totient is φ = 205141342184.

The previous prime is 615452666383. The next prime is 615452666407. The reversal of 615452666406 is 604666254516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615452666407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2246340 + ... + 2505383.

It is an arithmetic number, because the mean of its divisors is an integer number (76935163284).

Almost surely, 2^615452666406 is an apocalyptic number.

615452666406 is an abundant number, since it is smaller than the sum of its proper divisors (615509946138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

615452666406 is a wasteful number, since it uses less digits than its factorization.

615452666406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773315.

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 615452666406 in words is "six hundred fifteen billion, four hundred fifty-two million, six hundred sixty-six thousand, four hundred six".