150859997649 has 9 divisors (see below), whose sum is σ = 217910568603. Its totient is φ = 100572554952.

The previous prime is 150859997609. The next prime is 150859997671. The reversal of 150859997649 is 946799958051.

The square root of 150859997649 is 388407.

It is a perfect power (a square), and thus also a powerful number.

150859997649 is a `hidden beast` number, since 1 + 508 + 5 + 9 + 9 + 9 + 76 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13500813249 + 137359184400 = 116193^2 + 370620^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 150859997649 - 2⁹ = 150859997137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (150859997609) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1100487 + ... + 1229955.

Almost surely, 2^150859997649 is an apocalyptic number.

150859997649 is the 388407-th square number.

150859997649 is the 194204-th centered octagonal number.

It is an amenable number.

150859997649 is a deficient number, since it is larger than the sum of its proper divisors (67050570954).

150859997649 is an frugal number, since it uses more digits than its factorization.

150859997649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258944 (or 129472 counting only the distinct ones).

The product of its (nonzero) digits is 220449600, while the sum is 72.

The spelling of 150859997649 in words is "one hundred fifty billion, eight hundred fifty-nine million, nine hundred ninety-seven thousand, six hundred forty-nine".