101006778533 has 2 divisors, whose sum is σ = 101006778534. Its totient is φ = 101006778532.

The previous prime is 101006778479. The next prime is 101006778559. The reversal of 101006778533 is 335877600101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91178633764 + 9828144769 = 301958^2 + 99137^2 .

It is a cyclic number.

It is not a de Polignac number, because 101006778533 - 2⁸ = 101006778277 is a prime.

It is a super-2 number, since 2×101006778533² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101006778563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50503389266 + 50503389267.

It is an arithmetic number, because the mean of its divisors is an integer number (50503389267).

Almost surely, 2^101006778533 is an apocalyptic number.

It is an amenable number.

101006778533 is a deficient number, since it is larger than the sum of its proper divisors (1).

101006778533 is an equidigital number, since it uses as much as digits as its factorization.

101006778533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 101006778533 in words is "one hundred one billion, six million, seven hundred seventy-eight thousand, five hundred thirty-three".