20152994467 has 2 divisors, whose sum is σ = 20152994468. Its totient is φ = 20152994466.

The previous prime is 20152994399. The next prime is 20152994527. The reversal of 20152994467 is 76449925102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20152994467 - 2³¹ = 18005510819 is a prime.

It is a super-2 number, since 2×20152994467² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20152994467.

It is not a weakly prime, because it can be changed into another prime (20152994867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076497233 + 10076497234.

It is an arithmetic number, because the mean of its divisors is an integer number (10076497234).

Almost surely, 2^20152994467 is an apocalyptic number.

20152994467 is a deficient number, since it is larger than the sum of its proper divisors (1).

20152994467 is an equidigital number, since it uses as much as digits as its factorization.

20152994467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 20152994467 in words is "twenty billion, one hundred fifty-two million, nine hundred ninety-four thousand, four hundred sixty-seven".