194662980856 has 16 divisors (see below), whose sum is σ = 369094136400. Its totient is φ = 96237877824.

The previous prime is 194662980731. The next prime is 194662980857. The reversal of 194662980856 is 658089266491.

It is a super-2 number, since 2×194662980856² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194662980857) 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, 136700820 + ... + 136702243.

It is an arithmetic number, because the mean of its divisors is an integer number (23068383525).

Almost surely, 2^194662980856 is an apocalyptic number.

It is an amenable number.

194662980856 is a deficient number, since it is larger than the sum of its proper divisors (174431155544).

194662980856 is a wasteful number, since it uses less digits than its factorization.

194662980856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273403158 (or 273403154 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 64.

The spelling of 194662980856 in words is "one hundred ninety-four billion, six hundred sixty-two million, nine hundred eighty thousand, eight hundred fifty-six".